Lewis & Short

per-mărīnus, a, um, adj., that accompanies through the sea: Lares, marine Lares, guardian deities of those who travel by sea, Liv. 40, 52, 7 (gen. plur. permarinūm); M. Aurel. ap. Front. Ep. 3, 9; cf.: permarini, διαπόντιοι, Gloss. Philox.