the.com/descriptor

means A word or phrase that identifies or characterizes something, pinning a quality to it so it can be sorted, searched, or understood.

from Built from Latin 'describere' — 'de-' (down) plus 'scribere' (to write) — the same root that gives us 'describe' and 'scribe.' The '-or' ending, Latin for 'the thing that does X,' turns the verb into an agent: not the act of describing, but the tag that performs it. It's a relatively modern, technical-feeling coinage, well-worn in fields like linguistics, library science, and computing, where things need tidy labels more than poetic ones.