eṣú noun /ē.ʃú/
Definitions
  1. locust in-plural
    Ọlọ́mọ bí eṣú, Èyé Ògbòó káre You the one who has children as numerous as locusts, Ògbòó my mother I greet you!
  2. devil; demon; evil spirit proscribed
Etymology
Probably from e- (“nominalizing prefix”) + ṣú (“to darken; to move towards something in a massive form”), literally “That which swarms; That which darkens the sky”
Component words
e-nominalizing prefixṣúto darken; to move towards something in a massive form
Source: Wiktionary, where this word is spelled “eṣu”. Reference: en-eṣu-yo-noun-Pedxb04o