unmoored

verb (used with object)

1. to loose (a vessel) from moorings or anchorage.
2. to bring to the state of riding with a single anchor after being moored by two or more.

verb (used without object)

3. (of a vessel) to become unmoored.

verb nautical

1. to weigh the anchor or drop the mooring of (a vessel)
2. (tr) to reduce the mooring of (a vessel) to one anchor

v.late 15c., “to free from moorings,” from un- (2) + moor (v.). Related: Unmoored.