Meaning

noun a young person of either sex

adjective of lesser importance or stature or rank

adjective lesser in scope or effect

originFrom Middle English minor, menor, menour, etc., from Latin minor (“lesser; young; young person”) both directly and via Norman and Middle French menor, menour, etc. Doublet of minus but not mini-. Cognate with minister, minify, Minorca, Menshevik, and possibly minnow. Compare Latin minimum and minuō, Old High German minniro, Cornish minow.

Etymology from Wiktionary, CC BY-SA 3.0