Where does “impromptu” come from?

Impromptu comes from French impromptu, from Latin in promptu meaning "in readiness," combining in with promptu, the supine of promere meaning "to bring forth," ultimately from Proto-Indo-European bʰuH-.

impromptu (English): Improvised; without prior preparation, planning...

Definitions

  1. Improvised; without prior preparation, planning...

Ancestry of “impromptu”, step by step

StepLanguageWordMeaning
1Frenchimpromptuimprovised, not planned; improvised action;...
2Latinin promptuready, at hand
3Latinpromptuablative singular of prōmptus; readiness
4Latinpromptusa taking forth; produced; manifest, disclosed
5LatinpromoI take or bring out or forth, produce, bring to...
6Latinpro-forward direction, forward movement; action...
7Latinpro+ "ablative"; for; on behalf of, in the interest...
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed

Words derived from “impromptu

Every word from Proto-Indo-European pr̥tós