word parts

A-Z Word Parts Find roots and affixes with example words Word Parts GuideAbout this feature

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Word part Type Origin Definition
o- prefix Latin towards; against; away
ob- prefix Latin towards; against; away
oc- prefix Latin towards; against; away
oct, octo, octa root Greek eight
ocul root Latin eye
of- prefix Latin towards; against; away
-oid adjective- and noun-forming suffix Greek resembling, like
olig, oligo root Greek few; deficiency
omni- prefix Latin all
onomas, onomat root Greek name
ont, onto root Greek being, existence
onym root Greek name, word
op- prefix Latin towards; against; away
op, ops, opt, opto, ophthalm, ophthalmo, -opia, -opsy root Greek eye, visual condition, vision, sight, inspection
oper root Latin to work
opt1 root Latin best
opt2 root Latin choose
or, ora, ori root Latin mouth; speak, plead
orb root Latin wheel, circle
ord, ordin root Latin row, rank, order
ornith, ornitho root Greek bird