Where does “estrange” come from?

Estrange comes from Old French estranger, derived from Latin extraneus meaning "external," formed from Latin extra meaning "outside" combined with the suffix -anus, ultimately tracing to Proto-Indo-European h₁eǵʰs meaning "outside."

estrange (English): To cause to feel less close or friendly;...

Definitions

To cause to feel less close or friendly;...

Ancestry of “estrange”, step by step

Step	Language	Word	Meaning
1	Old French	estranger	to treat as a stranger; foreign
2	Latin	extrāneus	foreign
3	Latin	-āneus	forming adjectives Of or pertaining to; -aneous
4	Latin	-eus	argentum + API → argenteus; ferrum + API →...
5	Proto-Italic	*-eos	Forms adjectives indicating being formed out of a material

Words derived from “estrange”

estranger
estrangeth
estrangest

Every word from Proto-Italic *-eos →Every word from Latin -eus →Every word from Latin -āneus →