Hypertext Webster Gateway: "unhitch"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Unhitch \Un*hitch"\, v. t. [1 st 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.
From WordNet (r) 1.7 (wn)
unhitch
v : unfasten or release from or as if from a hitch [ant: {hitch}]
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