ikọ́ noun /ī.kɔ́/
ukọ́ (alternative), ụkọ́ (alternative)
Definitions
  1. cough
Etymology
Probably from Proto-Yoruboid *ʊ́-kɔ́, compare with Olukumi ukọ́, Igala úkọ́, equivalent to *ú- (“nominalizing prefix”) + *kɔ́ (“to cough”), ultimately of onomatopoeic origin.
Source: Wiktionary · etymology 1, where this word is spelled “ikọ”. Reference: en-ikọ-yo-noun-hmqzO4Rj