Everyday Words from Classic Origins Lesson 4

un(i)

one

bi(n)

two

du

two; twice

tri

three

terti

third

quadr(u)

four

quart

fourth

quinque

five

quint

fifth

sex(t)

six; sixth

sept, septem

seven

septim

seventh

oct

eight

octav

eighth

novem

nine

non

ninth

decem

ten

deci, decim

tenth

cent

hundred

mil(l)

thousand

unity

the state of being united or joined as a whole

dual

having two different parts, uses, etc.; having two of something

quarter

one of four equal parts

sextuplets

six offspring born at once

octant

a general term for something with 8 parts

December

the twelfth month of the year

millimeter

one thousandth of a meter

bicycle

a vehicle with two wheels

trinity

a group of three people or things

quintet

group of five

September

the ninth month of the year, formerly the seventh

nonagon

a polygon with nine sides

century

a period of 100 years

cent

1/100 of a dollar

mile

"1000 paces"

nonagenarian

person in his nineties

octoroon

person of one-eighth black ancestry

unicorn

mythical animal with one horn

decimal

based on the number ten

quintuplets

five offspring born at once

bicameral

based on two legislative bodies

quadrille

square dance

triumvirate

government by three persons

sextet

musical group of six

septennial

occurring every seven years

centipede

an insect with 100 legs

unanimous

of one mind; in complete agreement

biceps

muscles with two points of origin

trivial

unimportant, of little worth

duplicate

1. an identical copy or double of something (n.)
2. to make an identical copy or double of something (v.)

bicentennial

two-hundredth anniversary

triple

three times as many; made up of three parts

universal

present everywhere

dualism

the division of something into two opposed or contrasted aspects

octave

item with 8 parts, specific to music

decade

a period of ten years