èrukùkù noun /è.ɾū.kù.kù/
Definitions
  1. pigeon
Etymology
Compare with Nupe lukuku, Urhobo inékuku, Edo elikhukhu, Igbo kpalakwukwu, Ebira arekuku, Ifè àlúŋ̀kùkù, Olukumi olékùkù, possibly related to Ibibio ebomon-kuku, a widespread Niger-Congo root, Blench (2003) proposes a reconstruction to Proto-Niger-Congo *-kuku. See proposed Proto-Yoruboid *è-lúkùkù. Probably ultimately Onomatopoeic
Source: Wiktionary, where this word is spelled “erukuku”. Reference: en-erukuku-yo-noun-n3n9bNyI