estranged
UK: ɪˈstreɪndʒd | US: ɪˈstreɪndʒd
adj. (of a person) no longer close or affectionate to someone; alienated
vt. (past tense) caused someone to feel isolated or alienated
The word "estranged" originates from the Latin "extraneus" (meaning "foreign" or "external"), which evolved into Old French "estrangier" (to treat as a stranger). The prefix "e-" (from Latin "ex") intensifies the sense of separation. Over time, "estrange" came to mean "to alienate" or "to distance emotionally," reflecting the idea of making someone feel like a stranger.
After the argument, they became estranged for years.
His harsh words estranged him from his family.
She felt estranged in a room full of strangers.
The political scandal estranged many of his supporters.
Time and distance had estranged the once-close friends.