Un*cou"ple (?), v. t. [1st pref. un- + couple.]
To loose, as dogs, from their couples; also, to set loose; to disconnect; to disjoin; as, to uncouple railroad cars.
© Webster 1913.
Un*cou"ple, v. i.
To roam at liberty.
[Obs.]
Chaucer.
© Webster 1913.