affix

nouns

a linguistic element added to a word to produce an inflected or derived form
is derived from
is derived from
is a part of
a unit of language that native speakers can identify
"words are the blocks from which sentences are made"; "he hardly said ten words all morning"
is a type of (narrower)
a morpheme that occurs only as part of a larger construction; eg an -s at the end of plural nouns

verbs

attach to
"affix the seal here"
add to the very end
"He appended a glossary to his novel where he used an invented language"
is derived from
attach or become attached to a stem word
"grammatical morphemes affix to the stem"
is derived from
is derived from
is a type of (narrower)
cause to be attached