Origin of the name TAGUS.
Etymology of the
Meaning of the baby name TAGUS.
A Latinized form of Teutonic Dag
(q.v.), meaning "day."
(History of Christian Names, Yonge, 1884)
... A Roman ship hemmed in by
Phocæan barks, its crew divided, with equal warfare defends the right
side and the left; from the high stern of which, while Tagus
maintains the fight, and boldly seizes hold of the Grecian flag, he is
pierced both in back and breast at the same moment by hurled darts;... (Pharsalia
of Lucan, Riley, 1853)