nẹ̀ẹ́n pron /nɛ̀ɛ́/ /nɛ̀ɛ̃́/
nẹ̀ẹ́n sí (alternative)
Definitions
  1. who, whose, whom
    Nẹ̀ẹ́n wo rí? Who did you see
Etymology
From Clipping of nẹ̀ẹ́n sí. Most dialects and Yoruboid languages have a common cognate form different from Standard Yoruba, see, Ondo è sí, Ẹ̀gbá & Ìjẹ̀bú lè sí, Ijesha yè sí, Ọ̀wọ̀ sí, Iyagba nè ghí. The use of "sí" can be seen in many interrogative forms in dialects such as Ekiti, see ọ̀kàn sí (“which”), ubi sí (“where”), òlú sí (“how much”), ùgbẹ̀ sí (“when”). Cognate with Itsekiri nè sín, Olukumi è ghí, Ede Ije lè é.
Source: Wiktionary, where this word is spelled “nẹẹn”. Reference: en-nẹẹn-yo-pron-78qlmpnp