xenelasy

Learned borrowing from Ancient Greek ξενηλᾰσῐ́ᾱ (xenēlăsĭ́ā, “expulsion of foreigners”) + English -y (suffix forming abstract nouns denoting a condition, quality, or state). Ξενηλᾰσῐ́ᾱ (Xenēlăsĭ́ā) is derived from ξενηλατεῖν (xenēlateîn, “to expel a foreigner”) + -ῐ́ᾱ (-ĭ́ā, suffix forming feminine abstract nouns); and ξενηλατεῖν (xenēlateîn) is from ξένος (xénos, “foreigner; stranger”) (probably from Pre-Greek) + ἐλαύνω (elaúnō, “to drive, set in motion; to drive away”) (ultimately from Proto-Indo-European *h₁elh₂- (“to drive somewhere”)) + -ειν (-ein, suffix forming infinitives of verbs).

来源：wiktionary