The story
- Proto-Indo-European*h₂ent-
- Proto-Indo-European*h₂énts
- Proto-Indo-European*h₂énti
- Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
- Ancient Greekἀντι- (anti-)
- Englishanti-
- Proto-Indo-European*lek-der.?
- Latinlocusta
- Anglo-Normanlocuste
- Middle Englishlocuste
- Englishlocust
- English todayantilocust
From anti- (prefix meaning ‘against, opposed to; counteracting’) + locust.
Etymology from Wiktionary, CC BY-SA 4.0.