ichidan verb, intransitive verb
Intransitive verb for wounds, injuries, or emotional pain getting better. Often used for physical healing, but can also refer to emotional recovery.
傷がすっかり癒えた。
The wound has completely healed.
心の傷はなかなか癒えない。
Emotional wounds don't heal easily.
The kanji 癒 is associated with healing. The verb 癒える is the intransitive form, related to 癒す (transitive). The exact historical derivation is uncertain.