element added at end of word: a letter or group of letters added at the end of a word or word part to form another word, e.g. "-ly" in "quickly" or "-ing" in "talking"
transitive verb (past and past participlesuf·fixed, present participlesuf·fix·ing, 3rd person present singularsuf·fix·es)
Definition:
add as suffix: to add something as a suffix
[Early 17th century. < modern Latin suffixum< form of Latin suffixus, past participle of suffigere "fasten underneath" < figere "fix"]