joint · adjective, noun, verb1
- Latin · derived fromiūnctus
- Old French · derived fromjoint“joint of the body”
- Middle English · inherited fromjoynt
- English todayjoint
The noun is from Middle English joynt (attested since the late 13th century), from Old French joint (“joint of the body”) (attested since the 12th century). The adjective (attested since the 15th century) is from Old French jointiz. Both Old French words are from Latin iūnctus, the past participle of iungō. See also join, jugular, junction. Displaced Old English fōg and partially displaced English lith. The meaning of "building, establishment", especially in connection with shady activities, appeared in Anglo-Irish by 1821 and entered general American English slang by 1877, especially in the sense of "opium den". The sense "marijuana cigarette" is attested since 1935. The development to meaning "any thing" also happened to the Scots and Memphian form junt and the Mid-Atlantic/Philadelphian form jawn.
joint · verb2
From Middle English or following the -t model for forming a past participle.
Words from the same roots
Middle Englishjoynt all →
Latiniūnctus all →
Etymology from Wiktionary, CC BY-SA 4.0.