hallow

Inherited from Middle English halwe (“a saint, holy thing, shrine”), from Old English hālga (“a holy one, saint”), from Proto-Germanic hailagô (“holy one”), from hailagaz (“holy”), from Proto-Germanic hailaz (“whole, safe, hale”), from Proto-Indo-European kéh₂ilos (“safe, unharmed”). Cognate with Scots halow, hallow (“saint”), German Heiliger (“saint (male)”) / Heilige (“saint (female)”). More at holy, whole.

Inherited from Middle English halwen (“to hallow, sanctify”), from Old English hālgian (“to hallow, sanctify, make holy”), from Proto-Germanic hailagōną (“to make holy”), from hailagaz (“holy”), from Proto-Germanic hailaz (“whole, safe, hale”), from Proto-Indo-European kéh₂ilos (“safe, unharmed”). Cognate with Dutch heiligen (“to hallow”), German heiligen (“to hallow”). More at holy.

Inherited from Middle English halowen, from halow (interjection), from Old English ēalā (“O!, alas!, oh!, lo!”, interjection), probably conflated with Old French halloer.