Mĕtăpīnus — Lewis & Short
Mĕtăpīnus, a, umetym. dub.,
I Metapinic, an epithet of the second or middle of the three principal mouths of the Rhone:
cujus ora appellata ... alterum Metapinum,Mart. Cap. 6, § 635; Plin. 3, 4, 5, § 32.