ẹyún noun /ɛ̄.jṹ/
Definitions
  1. athlete's foot
Etymology
ẹ- (“agent prefix”) + yún (“to itch, to scratch”), literally “That which is itchy”
Component words
ẹ-agent prefixyúnto itch, to scratch
Source: Wiktionary, where this word is spelled “ẹyun”. Reference: en-ẹyun-yo-noun--XIlabFM