base word
part of an English word derived from a Greek or Latin word that usually has constant meaning and form
ex.: “pos” (place) in compose and imposition
combining vowels
usually “i” or “o”, it is sometimes used to link a base with subsequent elements
ex.: “geography”
suffix
element that can only be added to base or end of word
ex.: “-ic”
prefix
element that can only be added to beginning of base or word
ex.: “ge-“