potamogeton

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

pŏtămŏgēton or pŏtămŏgīton, ŏnis, f., = ποταμογείτων (a neighbor of the river),

a water-plant , water-milfoil , pondweed , Plin. 26, 8, 33, § 50; 32, 5, 19, § 53.