Where does “illusorie” come from?

illusorie (Middle French) comes from Latin illusorius, from Latin illusor, from Latin illudo, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

Ancestry of “illusorie”, step by step

Step	Language	Word	Meaning
1	Latin	illusorius	mocking, ironical
2	Latin	illusor	scoffer, mocker
3	Latin	illudo	I mock, ridicule; I abuse, assault
4	Latin	īn-	un-, non-, not
5	Latin	în	in, at, on, upon, from (space)
6	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
7	Proto-Italic	en	in
8	Proto-Indo-European	h₁én	in

Words derived from “illusorie”

illusory
illusoriness
illusorily
unillusory
nonillusory

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →