self-
self-hatred
octo-
octopus
quint-
quintuplets
circum-
circumvent; circumscribe
chloro-
chlorophyll
quad-
quadruplets; quadrant
kilo-
kilogram; kilometer
cent-
century; centimeter
ob-
object; oblige
duo-
duology; duopoly
demi-
demiglace
dec- deca-
decathalon
ante-
antecedent; ante
anti-
antibacterial; antibiotic
semi-
semiannual; semicircle