Rŭtŭpĭae

ārum, f.
I. a town and haven of the Cantii, in Britain, now Richborough, in Kent.—Hence, Rŭtŭpīnus, a, um, adj., of or belonging to Rutupiœ: ager, Aus. Parent. 18, 8: litora, Luc. 6, 67: fundus, Juv. 4, 141.
Lewis & Short
A Latin Dictionary, 1879
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