"distracted, frantic, deranged," late 14c., an alteration of distract (mid-14c.), which in its older form is long obsolete, a past-participle adjective from the Middle English verb distracten or else from Latin distractus "distracted, perplexed," past participle of distrahere "draw in different directions," from dis- "away" (see dis-) + trahere "to draw" (see tract (n.1)).
The Middle English alteration in form is perhaps by association with native past-participle forms in -ght, such as caught, bought, taught, brought. Compare distracted, which is a 16c. past-participle adjective from the same verb after the form of this word shifted.