

The Tomb of the Diver. Fifth-century BCE wall painting (Paestum, Italy)
Ten is the very nature of number. The Greeks and all barbarians alike count up to ten, and having reached ten, revert again to the single unit.
AETIUS (first-century CE Greek philosopher)
COUNTDOWN
The similarities among the words for the numbers one through ten were one of the first clues that led scholars of comparative and historical linguistics to posit a common ancestry for what is now called the Indo-European family of languages.
numerus, numeri = number
arithmos (άριθμός) = number
Let Me Count the Ways (in Indo-European) …
|
One |
Two |
Three |
|
|
Sanskrit |
ekas |
dvau |
trayah |
|
Persian |
yek |
do |
se |
|
Gaelic |
aon |
dhà |
trì |
|
Albanian |
njē |
dy |
tre |
|
Pashto |
yaw |
dwa |
dre |
|
German |
ein |
zwei |
drei |
|
Russian |
odin |
dva |
tri |
LATIN NUMBERS
|
Cardinal Numbers |
Roman Numerals |
English Combining Form |
Example |
|
1. unum |
I |
uni- |
uniform |
|
2. duo |
II |
duo- or du- |
duet |
|
3. tres |
III |
tri- |
triangle |
|
4. quattuor |
IV |
quadri- |
quadrilateral |
|
5. quinque |
V |
quinqu- |
quinquennial |
|
6. sex |
VI |
sexi- or sex- |
sextet |
|
7. septem |
VII |
sept- |
September |
|
8. octo |
VIII |
oct- or octa- |
octet |
|
9. novem |
IX |
novem- or noven- |
November |
|
10. decem |
X |
decem- or deca- |
December |
|
100. centum |
C |
centi- or cent- |
centigrade |
|
1,000. mille |
M |
milli- or mill- |
millennium |
How Long Did You Say I Have to Wait Here?
In the seventeenth century, when an outbreak of bubonic plague spread across Europe bringing death and devastation, the rulers of Venice ruled that ships arriving from plague-infested places had to wait for forty days before passengers could disembark, in order to insure that no one on the boat was infected with the disease. The ItalianQuarantina giorni (forty days) is derived from quadraginta, the Latin word for forty. What is the current meaning of the English word quarantine?
Examples of Roman Numerals
|
XI = 11 |
XIX = 19 |
XX = 20 |
|
XXV = 25 |
XXXVI = 36 |
LIII = 53 |
|
LXIV = 64 |
XCIV = 94 |
CLXXIX = 179 |
|
CCX = 210 |
CCCXLVII = 347 |
CDXVII = 418 |
|
DLXVII = 567 |
MDCCCLXXXV = 1885 |
MCMLXXXIV = 1984 |
It's Nothing
Although they certainly understood the quality of “nothingness,” neither the Greeks nor the Romans had a symbol that indicated zero, or the absence of quantity. The arithmetic representation of zero was devised by Hindu mathematicians and given an Arabic name (sifr = emptiness) by medieval Muslim scientists. The word passed into English in two forms: cipher and zero.
|
Latin Word |
English Meaning |
|
nihil |
nothing |
|
nullum, nullius |
no, none |
Latin Ordinal Numbers
|
Ordinal Numbers |
English Meaning |
Example |
|
primum |
first |
primary |
|
secundum |
second |
second |
|
tertium |
third |
tertiary |
|
quartum |
fourth |
quart |
|
quintum |
fifth |
quintet |
|
sextum |
sixth |
sextuple |
|
septimum |
seventh |
septimal |
|
octavum |
eighth |
octave |
|
nonum |
ninth |
nonagenarian |
|
decimum |
tenth |
decimal |
We the People
In 1782, at the end of the American Revolutionary War, e pluribus unum was adopted as the official motto of the United States and inscribed on the Great Seal. You can find its image on all American paper currency.
E pluribus unum = out of many, one
Latin Numerical Adverbs and Adjectives
|
Numerical Adverbs and Adjectives |
English Meaning |
Combining Form |
Example |
|
solum, solius |
single, alone |
soli- |
solitary |
|
sesqui |
one and a half |
sesqui- |
sesquicentennial |
|
bis |
twice |
bi- |
biennial |
|
semi-1 |
half |
semi- |
semiannual |
|
ambo |
both |
ambi- |
ambidextrous |

“Take my word for it. The answer is two. I'm a college graduate.” (www.cartoonstock.com)
GREEK NUMBERS
|
Cardinal Numbers |
English Combining Form |
Example |
|
1. hen (ἕν) |
heno- |
henotheist |
|
monon (μόνον) |
mono- |
monogram |
|
2. dyo (δύο) |
dyo- or dy- |
dyad |
|
3. tris (τρει̑ς) |
tri- |
trigonometry |
|
4. tessara or tettara (τέσσαρα, τέτταρα) |
tetra- |
tetrahedron |
|
5. pente (πέντε) |
pent- or penta- |
pentathlon |
|
6. hex (ἕξ) |
hexa- |
hexameter |
|
7. hepta (ἑπτά) |
hepta- |
heptagon |
|
8. octo (ὀκτώ) |
octo- or octa- |
octopus |
|
9. ennea (ἐννέα) |
ennea- |
ennead |
|
10. deca (δέκα) |
deca- |
decalogue |
|
100. hecaton (ἐκατόν) |
hecto-2 |
hectogram |
|
1,000. chilioi (χ́ίλιοι) |
chilo- or kilo- |
chiliastic, kilogram |
Greek Ordinal Numbers
|
Ordinal Numbers |
English Meaning |
English Combining Form |
Example |
|
proton (πρω̑τον) |
first |
proto- |
prototype |
|
deuteron (δεύτερον) |
second |
deutero- |
Deuteronomy |
Other Greek ordinal numbers are rarely used in English compounds.
Greek Numerical Adverbs
|
Numerical Adverbs |
English Meaning |
English Combining Form |
Example |
|
dis (δίς) |
twice |
di- |
dilemma |
|
hemi (ήμι-) |
half |
hemi- |
hemisphere |
The Years Fly By …
If we wish to note an anniversary, we can use the Latin numerical prefix with the combining form of the Latin noun for year.
annus, anni (year) > -ennial
e.g., centum + annus = centennial
It's Over
He asked for a finite number of ideas, but his speech went on to infinity. finio-finire-finitum = limit, fix; close
So Stop Wasting Time
The Romans called the point at which three roads met a trivium, a term that was also used to describe a public street. Perhaps because it was out in the open and therefore common, or perhaps because people would just hang out there, not talking about anything important, the topics of discussion could be described as trivial (via, viae = road).
Or Perhaps I Can't Count That High
The largest number in Greek expressed in a single word is myrias, myriados (μυριάς), which represents the number 10,000. But it also meant infinite, or countless, which is the meaning we give myriad in current English usage.
It's More Than Enough
Although the word plethora (πληθώρη) originally meant fullness, it now means an overabundance.
It's Too Much
The word googol was coined by the nine-year-old nephew of the twentieth-century mathematician Edward Kasner, who defined it for him as “1 followed by a hundred zeros.” It seems like an appropriate word for a nonsensical number. The search engine Google is a play on the word, since it claims to offer access to an uncountable amount of knowledge.
How Much Is Two and Ten?
As we have already seen, the Roman numeral XII represents the number 12, or ten plus two. The word in Latin for twelve is just that: duo plus decem, or duodecim. The word passed into French and eventually appeared as douzaine. How do you think that happened?

A fallen warrior, The Dying Gaul. Third century BCE (Museo Capitolino, Rome)
Don't Be a Show-Off!
Some people are afflicted with sesquipedalianism. They love using words that are one- and-a-half feet long, taking delight in showing off and confusing you.
Here We Go Again …
A palindrome is a word or a sequence of words that reads, letter for letter, the same backward as forward. “Was it a cat I saw?”
παλívδρoμoς = running back again

NAME _______________________________________________________
A. Arrange the following words in numerical order as indicated by their Latin or Greek roots. What is the meaning of each word? Consult your unabridged dictionary if you are unsure of the meaning or etymology or any word listed.
|
English Word |
Ranking |
Meaning |
|
1. trimester |
____________ |
____________ |
|
2. octagon |
____________ |
____________ |
|
3. quintuplet |
____________ |
____________ |
|
4. primary |
____________ |
____________ |
|
5. duality |
____________ |
____________ |
|
6. September |
____________ |
____________ |
|
7. millennium |
____________ |
____________ |
|
8. percentage |
____________ |
____________ |
|
9. semester |
____________ |
____________ |
|
10. noon |
____________ |
____________ |
|
11. unicycle |
____________ |
____________ |
|
12. hemisphere |
____________ |
____________ |
|
13. square |
____________ |
____________ |
|
14. decimal |
____________ |
____________ |
|
15. century |
____________ |
____________ |
|
16. bigamy |
____________ |
____________ |
|
17. hemidemisemiquaver |
____________ |
____________ |
B. Fill in the blanks in the following sentences with the literal meaning of the italicized word or part of a word. Make sure that your sentences are grammatically correct.
Example
To unify a people is to make them into one.
A deuterogamist has married for the second time.
18. Primates are ranked __________ in the order of living beings.
19. A trilogy is a literary work composed of __________ parts.
20. A quatrain is a verse of poetry that has __________lines.
21. A sextet has __________members.
22. When will the tricentennial celebration of American independence take place? __________
23. Protoplasm is regarded as the __________ form of living matter.
24. When a chorus sings in unison, it sings with __________ voice.
25. The Pentagon is a __________-angled building.
26. A monotheist believes in __________ god.
27. In exactly two decades, what year will it be? __________ Write the answer in Roman numerals. __________
28. If you are a sextuplet, how many siblings of your age do you have? __________
29. If a judge declares a contract null and void, what does this ruling mean? _____________________________________________________________
30. What is the difference in meaning between ambivalent and ambiguous? __________
31. What is the difference between a kilometer and a millimeter? ________________________________________________
32. When an atomic bomb annihilated Hiroshima, Japan, in 1945, it reduced it ____________________
33. A semiannual event takes place __________ __________.
34. A bicameral legislature has __________chambers of lawmakers.
35. A duplicitous individual is deceiving and tricky. What is the root of this word, and how do you think it took on its current meaning? ________________________________________________________
36. Some people enjoy solitude, but I don't like being __________.
37. What is the meaning of cipher in mathematics? ______________________________
What is its meaning when describing a person? ______________________________
38. What is the present meaning of plethora? __________ Use it in a sentence. ________________________________________________________________________________
C. What are the French, Spanish, and Italian words for the numbers given below?
|
English |
French |
Spanish |
Italian |
|
39. one |
________________ |
________________ |
________________ |
|
40. two |
________________ |
________________ |
________________ |
|
41. three |
________________ |
________________ |
________________ |
|
42. four |
________________ |
________________ |
________________ |
|
43. five |
________________ |
________________ |
________________ |
|
44. six |
________________ |
________________ |
________________ |
|
45. seven |
________________ |
________________ |
________________ |
|
46. eight |
________________ |
________________ |
________________ |
|
47. nine |
________________ |
________________ |
________________ |
|
48. ten |
________________ |
________________ |
________________ |
|
49. hundred |
________________ |
________________ |
________________ |
|
50. thousand |
________________ |
________________ |
________________ |
Footnotes
1. Semi- is used only as a prefix in Latin; in English usage it can mean half, as in semiannual (twice a year), but it often has the meaning of “somewhat” or “partially,” e.g., semiconscious.
2. Used in English only as a learned borrowing.