Unmoor
Unmoor , transitive verb
[1st pref. un- + moor.]
(a)
(Nautical) To cause to ride with one anchor less than before, after having been moored by two or more anchors.
(b)
(Nautical) To loose from anchorage. See Moor, transitive verb
Unmoor , intransitive verb
To weigh anchor. — Sir W. Scott