n̄kọ́ particle /ŋ́.kɔ́/ /ŋ̄.kɔ́/
Definitions
  1. Used after a noun to signify "What about...?"
    Ẹ̀ghin n̄kọ́? What about you?
  2. Used after a noun to signify "Where is...?"
    Ìyàò rẹ̀ n̄kọ́? Where is your wife?
Source: Wiktionary, where this word is spelled “nkọ”. Reference: en-nkọ-yo-particle-eiO-atGL1