ìwo noun /ì.wō/
ìo (alternative), ùo (alternative), òo (alternative), ìgho (alternative)
Definitions
  1. horn
Etymology
Proposed to be derived from Proto-Yoruboid *ì-ɣo. Cognate with Edo ìgho, Urhobo ighóró, Olukumi óghó
Source: Wiktionary, where this word is spelled “iwo”. Reference: en-iwo-yo-noun-lUMJjxcE