mono, uni
two
five
one hundred
one
bi, di
four
two
one
ten
tri EX: triangle, triad, tricycle, trio
number
three
angle
two
quadr, quad, tetra, quar
five
three
four
side
penta, quin
three
thousand
five
four
hexa EX: hexagon, hexapod, hexameter
six
billionth
ten
five
sept EX: September, septangular, septillion
three
one hundred
two
seven
octa EX: octagon, octopus, October
seven
six
eight
one
dec EX: decade, decagon, December
ten
five
four
thousandth
demi, semi, hemi
half
side
number
sided-object
cent EX: century, centurion, cent, centimeter
thousand
one hundred
thousandth
ten
kilo EX: kilometer, kilogram
thousand
thousandth
around
billionth
milli EX: millimeter, milligram, millipede
billionth
thousandth
one hundred
thousand
nano EX: nanosecond, nanotechnology
billionth
one hundred
trillionth
thousand
pico EX: picogram, picometer
thousandth
billionth
one
trillionth
numer EX: numeral, numerator
one
two
around
number
