bĭmātris — Lewis & Short
bĭmātris, e, adj.bis - mater,
I having two mothers, poet. epithet of Bacchus (v. Bacchus init.):
satumque iterum solumque bimatrem,Ov. M. 4, 12; Hyg. Fab. 167; Anthol. Lat. 1, 19, 2 (where it is scanned bīmăter).