Other forms: buttons, buttoned
A button is the small round fastener you push through a hole to close a shirt. Sewn on with a few stitches, and always the first thing to come off.
The clothing sense brought a whole small vocabulary with it — a buttonhole, a button-down collar, doing your coat up. The other sense is the one you use most: the thing you press on a machine, a lift, a remote control. That gave English a set of phrases about triggering things, from pressing the button to somebody knowing exactly which buttons to push. As a verb, to button up means both to fasten and to stop talking.
Shares are an estimate: a language model read 18 sentences found in the wild and placed 11 of them on a sense (7 were unclear) — a count of our sample, not a measurement of English.
A button is a little push. Old French boton comes from boter, to push or thrust, so the thing you press and the thing you shove through a hole are the same idea.
Old French
boton
Middle English
boton
English, today
button
Built from
From Middle English boton, botoun, from Old French boton (Modern French bouton), from Old French bouter, boter (“to push; thrust”), ultimately from a gem - language. a doublet of bouton and Biden and beat. More at butt.
Etymology from Wiktionary, CC BY-SA