Etymograph

English

impromptu

Impromptu comes from French impromptu ‘improvised, not planned’, and goes back to Latin in prōmptū.

  1. Latinc. 75 BCE–200 CEin prōmptū
  2. Frenchc. 1600–presentimpromptu‘improvised, not planned’
  3. Englishearliest quotation 1997same form

attested reconstructed ? uncertain or disputed

Lineage

  1. Latinc. 75 BCE–200 CEin prōmptū
  2. Frenchc. 1600–presentimpromptu‘improvised, not planned’
  3. Englishearliest quotation 1997same form

Earliest quotation: 1997, Christopher H. Gibbs, The Cambridge Companion to Schubert: “The second impromptu is a dance-like Allegretto in A…”

Today it means

adj Improvised; without prior preparation, planning, or rehearsal.

Language periods are conventional ranges, not dates for this word.

Etymograph / Latin in prōmptū / impromptu