ẹ̀bínẹ́yìn noun /ɛ̀.bí.nɛ́.jĩ̀/
Definitions
  1. younger sibling
Etymology
From ẹ̀- (“nominalizing prefix”) + bí (“to give birth to”) + nẹ́yìn (“after”)
Component words
Source: Wiktionary, where this word is spelled “ẹbinẹyin”. Reference: en-ẹbinẹyin-yo-noun-bZxpv2Lk