Where does “illusoir” come from?

illusoir (Dutch) comes from French illusoire, from Latin illusorius, from Latin illusor, from Latin illudo, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

illusoir (Dutch): illusory

Definitions

illusory

Ancestry of “illusoir”, step by step

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

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