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