Halfway

wiktionary

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From Middle English halfwey, from Old English healfweġ(“half-way”), equivalent to half- +‎ way. Cognate with Saterland Frisian hoolfwais(“halfway”), Dutch halfweg(“halfway”), German halbwegs(“halfway”), Danish halvvejs(“halway”), Swedish halvvägs(“halfway”).

etymonline

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halfway (adv.)

also half-way, Old English healfweg; see half + way (n.). Halfway house originally was a common name for inns midway between cities or stages.