transitive verb

Stick, attach, or fasten (something) to something else.

he licked the stamp and affixed it to the envelope

attach,stick,fasten,bind,fix,post,secure,join,connect,couple

noun

An additional element placed at the beginning or end of a root, stem, or word, or in the body of a word, to modify its meaning.

Languages that work like this, where whole phrases or clauses can be formed in one word by attaching affixes to noun stems or verbs, are called polysynthetic.