Litus maris
Defined in 2 dictionaries — Ballentine's (1916), Black's (1891)
Ballentine's Law Dictionary
James A. Ballentine · 1916
The shore of the sea.
A Dictionary of Law
Henry Campbell Black · 1891
Thesea-shore. “It is certain that that which the sea overflows, either at high spring tides or at extraordinary tides, comes not, as to this purpose, under the denomination of ‘@itus maris,’ and consequently the king’s title is not of that large extent, but only to land that is usually overhigh-water and low-water mark, and no more.” Hale de Jure Mar. c. 4.