Exile
Etymology
From Latin exilium, "banishment," from exsul, "a banished person," reaching English through Old French. The formation of exsul is disputed: it is usually read as ex-, "out," combined with a root meaning "to wander" or possibly with solum, "soil," giving the sense of one driven from native ground. Either way the throughline is being sent out and away.
noun · /EG-zyle/
Enforced or self-imposed absence from one’s home country, or the state of living so removed.
What it names
The condition of being barred from where one belongs — banished by others or by conscience — and having to live somewhere that is not home.
Example
The poet spent his exile in Paris, writing endlessly about a city he was no longer allowed to enter.
Related idea
Diaspora describes a whole scattered people living away from a homeland; exile is the individual’s severance, often carrying a note of punishment or loss that diaspora does not.