Lewis & Short

Euhius (cf. Lach. ad Lucr. 5, 743; also, Euius; less correctly, as in some edd., Evius), ii, m., a surname of Bacchus, Lucr. 5, 742; Cic. Fl. 25, 60; Hor. C. 1, 18, 9; 2, 11, 17; Col. poët. 10, 424.
Acc. Euhion, Pers. 1, 102; Ov. A. A. 1, 563; voc. Euhie, Stat. Th. 2, 72; Col. poët. 10, 224.
Hence,

  1. A. Euhius (Evius), a, um, adj., of or belonging to Bacchus, Bacchic: terga, i. e. tympana, Stat. Ach. 2, 15.
  2. B. Euhĭas, ădis, f., a Bacchante, Hor. C. 3, 25, 9.