From Wiktionary, the free dictionary
From omi (“water”) + inú (“insides, stomach”)
ominú
- (idiomatic, often in the plural) reservation, doubt
- Synonym: iyèméjì
ominú kọ mí lórí ọ̀rọ̀ yìí- I have some reservations on this matter
- regret, remorse
- Synonyms: àbámọ̀, jẹ̀ka