Affix
noun
That which is affixed; an appendage.
A bound morpheme added to the word’s stem's end.
(broadly) A bound morpheme added to a word’s stem; a prefix, suffix etc.
Synonyms: addition, supplement, postfix, suffix
verb
To attach.
“to affix a stigma to a person”
To subjoin, annex, or add at the close or end; to append to.
“to affix a seal to an instrument”
To fix or fasten figuratively; with on or upon.
“eyes affixed upon the ground”
Synonyms: join, put together, unite