the.com/affix

A word part that shows up uninvited and changes who you are.

means A piece attached to a word's beginning or end (or occasionally inserted within it) that changes its meaning or grammatical role, like a prefix or suffix.

from From Latin affixus, past participle of affigere, 'to fasten to' — from ad- ('to') plus figere ('to fix, fasten'). The same figere gives us 'fix' and 'fixture,' so an affix is literally something nailed onto a word, holding fast whether the word likes it or not.

not standalone
always clings to a root, never alone
two camps
prefixes lead, suffixes follow
infix exists
rare type stuffed inside the root itself
meaning shifter
unhappy versus happiness, same root, different fate
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