Estrangement is the state of having drifted out of contact. Family estrangement, a long estrangement, end the estrangement.
It is usually gradual rather than declared, which is what makes it different from a quarrel — nobody announces it and both sides can be waiting for the other to move. It is far commoner in families than people assume, because it is rarely talked about. Note that the word comes from strange, meaning made a stranger.
1nounestrangementThe state of having drifted out of contact.
“After years of estrangement, the brothers met again at their mother's hospital bed.”
estrangement is a separation.
Old French estrangement comes from estranger, to treat as a stranger, from Latin extraneus, foreign. Strange and extraneous come from the same outsideness.
Old French
estrangement
English, today
estrangement
Old French estrangement. by surface analysis, en + estrange + ment.
Etymology from Wiktionary, CC BY-SA