Quasi-derelict
Defined in 3 dictionaries — Ballentine's (1916), Bouvier (1914), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
A vessel whose crew is disabled by sickness or other cause. See Newb. 449, 23 Fed. Cas. (U. S.) 333.
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
The condition of a vessel which is not abandoned, but those on board of which are physically incapable of doing anything for their safety. 1 Newb. Adm. 452.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
When a vessel, without being abandoned, is no longer under the control or direction of those on board, (as where part of the crew are dead, and the remainder are physically and mentally incapable of providing for their own safety,) she is snid to be quasi derelict. Sturtevant v. Nicholaus, 1 Newb. Adm. 449, Fed. Cas. No. 13,578.
Defined under Derelict in Black's Law Dictionary.