emigration
noun
- act of leaving one's country or region with the intent to settle permanently or temporarily in another
Wiktionary
noun
Etymology: From Late Latin stem of emigratio, from e (“out”) + migrare (“to move, remove, depart”).
- The act of emigrating; movement of a person or persons out of a country or national region, for the purpose of permanent relocation of residence.
- A body of emigrants; emigrants collectively.
“the Irish emigration”