ẹ̄ character /ɛ̄/ spelling unconfirmed
Ẹ̄ (uppercase)
Definitions
  1. The letter ⟨ẹ⟩ with mid tone (not usually marked overtly) Nigerialetteruncommon
Source: Wiktionary, where this word is spelled “ẹ̄”. Reference: en-ẹ̄-yo-character-AhupFC0n