verb

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

panels to which he affixes copies of fine old prints

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

noun

An addition to the base form or stem of a word in order to modify its meaning or create a new word.

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.