Etymograph

English

illusory

Illusory comes from Middle French illusorie.

  1. Middle Frenchc. 1400–1600illusorie
  2. Englishearliest quotation 1973illusory

attested reconstructed ? uncertain or disputed

Lineage

  1. Middle Frenchc. 1400–1600illusorie
  2. Englishearliest quotation 1973illusory

Earliest quotation: 1973, Jadunath Sinha, A History of Indian Philosophy: “The invalidity of a cognition is the otherwiseness of…”

Today it means

adj Resulting from an illusion; deceptive, imaginary, unreal.

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

Etymograph / Middle French illusorie / illusory