ọjọ́ Àìkú noun /ɔ̄.d͡ʒɔ́ à.ì.kú/
Definitions
  1. Sunday
Etymology
From ọjọ́ (“day”) + àì- (“negation suffix”) + kú (“to die”), literally “Day of Immortality”.
Component words
ọjọ́dayàì-negation suffixto die
Source: Wiktionary, where this word is spelled “ọjọ Aiku”. Reference: en-ọjọ_Aiku-yo-noun-hz~vdg5d