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English word heal comes from Proto-Indo-European *ḱel-, Proto-Indo-European *kóh₂ilus, Proto-Indo-European *koil-, Proto-Indo-European *kóylos, Proto-Indo-European *koyl-, Proto-Indo-European *kóh₂ilos, Old English (ca. 450-1100) helian, and later Proto-Indo-European *ḱéleti (To be covering, hiding.)
*ḱel- (Proto-Indo-European)
to hide, protect, to cover , to freeze, become cold, to incline, to cover, hide, to cover, hide, conceal, to hide, conceal, cold, warm, cold, to cover, to hide
*kóh₂ilus (Proto-Indo-European)
*koil- (Proto-Indo-European)
*kóylos (Proto-Indo-European)
*koyl- (Proto-Indo-European)
*kóh₂ilos (Proto-Indo-European)
helian (Old English)
*ḱéleti (Proto-Indo-European)
To be covering, hiding.
*helaną (Proto-Germanic)
To hide, to conceal.
helan (Old English)
To hide, conceal.
*hailaz (Proto-Germanic)
Entire, complete. Healthy, sound. Whole, unbroken, intact.
*hailijaną (Proto-Germanic)
To heal, to make healthy. To make whole, to mend.
hǣlan (Old English)
hælan (Old English)
To heal.
helien (Middle English)
heal (English)
(intransitive) To become better.. (transitive) To make better from a disease, wound, etc.; to revive or cure.. To reconcile, as a breach or difference; to make whole; to free from guilt. (RPG, countable) A spell or ability that restores hit points or removes a status ailment.. (obsolete, uncountable) health.