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