'unhitch' definitions:

Definition of 'unhitch'

(from WordNet)
verb
Unfasten or release from or as if from a hitch [ant: catch, hitch]

Definition of 'unhitch'

From: GCIDE
  • unhitch \un*hitch"\, v. t. [1st pref. un- + hitch.] To free from being hitched, or as if from being hitched; to unfasten; to loose; as, to unhitch a horse, or a trace. [1913 Webster]