Origin and history of hung

a fusion of Old English hon "suspend" (transitive, class VII strong verb; past tense heng, past participle hangen), and Old English hangian "be suspended" (intransitive, weak, past tense hangode); also probably influenced by Old Norse hengja "suspend," and hanga "be suspended." All from Proto-Germanic *hanhan (transitive), *hanganan (intransitive) "to hang" (source also of Old Frisian hangia, Dutch hangen, German hängen), from PIE *konk- "to hang" (source also of Gothic hahan, Hittite gang- "to hang," Sanskrit sankate "wavers," Latin cunctari "to delay;" see also second element in Stonehenge).

As a method of execution the word is attested in late Old English (but originally specifically of crucifixion). A Cincinnati source from 1838 describes it euphemistically as "encountering atmospheric suspension" ["Tales and Sketches of the Queen City"]. The meaning "to come to a standstill" (as especially in hung jury) is from 1848, American English. Hung emerged as past participle 16c. in northern England dialect, and hanged endured in legal language (which tends to be conservative) in reference to capital punishment and in metaphors extended from it (I'll be hanged).

The teen slang sense of "spend time" is recorded by 1951; hang around "idle, loiter" is from 1828, American English; also compare hang out. To hang back "be reluctant to proceed" is from 1580s; the phrase hang an arse "hesitate, hold back" is from 1590s. The verbal phrase hang fire (1781) originally was of guns that were slow in communicating fire through the vent to the charge. To let it all hang out "be relaxed and uninhibited" is from 1967.

also hang-over, 1894, "a survival, a thing left over from before," from hang (v.) + over. Meaning "after-effect of excessive drinking" is attested by 1902, American English, on notion of something left over from the night before. As an adjective, in reference to a person, overhung (1964) has been used but is rare; that word meaning generally "placed so as to project or jut out" (1708).

1610s, in reference to male genitalia, from well (adv.) + hung (adj.). By 1762 as "suspended or attached so as to hang properly."