Hinge

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Middle English henge ; related to hang.

wiktionary

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From Middle English henge, from Old English *henġ(“hinge”), compare Old English henġe- in henġeclif(“overhanging cliff”), Old English henġen(“hanging; that upon which a thing is hung”), possibly from Proto-Germanic *hangaz, *hangiz(“hanging”, adjective). Akin to Scots heenge(“hinge”), Saterland Frisian Hänge(“hinge”), Dutch heng(“door handle”), Low German henge(“a hook, hinge, handle”), Middle Dutch henghe, hanghe(“a hook, hinge, handle”), Scots hingel(“any attachment by which something is hung or fastened”), Dutch hengel(“hook”), geheng(“hinge”), hengsel(“handle”), dialectal German Hängel(“hook, joint”), German Henkel(“handle, hook”), Old English hōn(“to hang”), hangian(“to cause to hang, hang up”). More at hang.

etymonline

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hinge (n.)

late 14c., "movable joint of a gate or door," not found in Old English, cognate with Middle Dutch henghe "hook, handle," Middle Low German henge "hinge," from Proto-Germanic *hanhan (transitive), *hangen (intransitive), from PIE *konk- "to hang" (see hang (v.)). The notion is the thing from which a door hangs. Figurative sense of "that on which events, etc., turn" is from c.1600. Stamp-collecting sense is from 1883.

hinge (v.)

c. 1600, "to bend," from hinge (n.). Meaning "turn on, depend" (figuratively) is from 1719. Related: Hinged; hinging.