Disrepear, circa 1950, CSWE-MS ( careless southwestern English-with Mississippi influences ).
'For a thing or object or person to just be gone-without explantion, to become unavailable for ordinary, anticipated & expected use-a most unhandy event. Action is attirbuted to some idiot who has misplaced the article, object or person. [ EX:"Son, where the H-- has this box of ammo disrepeared to? Boy-I am asking you for an answer!" ]
From the Instant Dictionary of Careless, Quaint Colloquial Usage. Gatekeeper Bookman Press, 2003.
"The War has many facets;
http://aztlan.net/ Look at your enemy."
I guess one only need look in the right dictionary. My Merriam-Webster didn't have anything closer than 'disrepair'.