Pharos
Defined in 3 dictionaries — Bouvier (1914), Black's (1910), Bouvier (1839)
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
A watch-tower, at sea mark, which cannot be erected without lawful warrant and authority. 3 Inst. 204.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A watch-tower, light-house or sea-mark.
A Law Dictionary, Adapted to the Constitution and Laws of the United States
John Bouvier · 1839
A light house or beacon. It is derived from Pharus, a small island at the mouth of the Nile, on which was built a watch-tower.