septem-flŭus — Lewis & Short
septem-flŭus, a, um, adj.fluo,
I sevenfold-flowing, an Ovidian epithet of the Nile (as having seven mouths):
Nilus,Ov. M. 1, 422:
flumina Nili,id. ib. 15, 753 (cf. the foll. art. and septemplex).