Origin of disjoinMiddle English disjoinen ; from Old French desjoindre ; from Classical Latin disjungere: see dis- and amp; join
verbdis·joined, dis·join·ing, dis·joins
Origin of disjoinMiddle English disjoinen, from Old French desjoindre, from Latin disiungere : dis-, dis- + iungere, to join; see join.
(third-person singular simple present disjoins, present participle disjoining, simple past and past participle disjoined)
From Middle English disjoynen, from Old French desjoindre, from Latin disiungere (“to separate”), from dis-, di- (“apart”) + iungere (“to join”).