estranger
Estranger is a noun in English with two principal senses. In one sense, it denotes a person or thing that estranges others; that is, an agent of estrangement in a relationship or social group. In a historical or literary sense, it can also refer to a foreigner or unfamiliar person. The term is now largely archaic in everyday use and is not common in contemporary prose, where “stranger” or “agent of estrangement” would be preferred.
Etymology: The word derives from Old French estranger and Latin extraneus, meaning foreign or unfamiliar. In
Usage: Because it is rare in modern English, estranger appears mainly in historical texts, literary criticism,