èsúró noun /è.sú.ɾó/
èsíó (alternative)
Definitions
  1. The red-flanked duiker, Cephalophus rufilatus
Etymology
Compare with Ifè èsíwó, perhaps to be derived from Proto-Yoruba *è-síwó
Source: Wiktionary, where this word is spelled “esuro”. Reference: en-esuro-yo-noun-ctaM6p9K