Alienate
early 16th century: from Latin alienat- ‘estranged’, from the verb alienare, from alienus ‘of another’ (see alien).
wiktionary
From Middle English alienat, from Latin aliēnātus, perfect passive participle of aliēnō(“alienate, estrange”), from aliēnus. See alien, and confer aliene.
etymonline
alienate (v.)
1510s, "transfer to the ownership of another;" 1540s, "make estranged" (in feelings or affections), from Latin alienatus, past participle of alienare "to make another's, part with; estrange, set at variance," from alienus "of or belonging to another person or place," from alius "another, other, different," from PIE root *al- (1) "beyond." Related: Alienated; alienating.
In Middle English the verb was simply alien, from Old French aliener and directly from Latin alienare. It is attested from mid-14c. in theology, "estrange" (from God, etc.; in past participle aliened); late 14c. as "break away (from), desert;" c. 1400 in law, "transfer or surrender one's title to property or rights."
