uni
one
Bi
two
Duo/Dou/Du
two
Tri / Tres
three
Quad
four
Deci
ten
Centi
one hundred
Bicentennial
two hundred years
decathlon
an athletic contest in which each contestant competes in 10 events
Centigrade
A measurement of temperature where water freezes at 0 degrees and boils at 100 degrees.
Quartet
a group of 4 , especially musicians
quatrain
a group of 4 lines of poetry
quadrant
a quarter (1/4) of a circle, or an of the 4 parts of an area divided by two perpendicular lines
trilogy
a group of 3 literary or musical works with a related theme
trisect
to divide into 3 parts
century
period of 100 years
