THYSA was the Bakkhiad nymphe who personified the wild frenzy of the Bakkhic (Bacchic) orgies. She was a daughter and companion of the god Dionysos.
Thysa was similar to Thyone, the mother of Dionysos in her guise as the goddess of the Bakkhic frenzy, and the Naias nymphe Thyia of Delphoi .
|DIONYSOS (Euripides Palamedes Frag, Strabo 10.3.13)
Strabo, Geography 10. 3. 13 (trans. Jones) (Greek geographer C1st B.C. to C1st A.D.) :
"And in the Palamedes [a play by Euripides] the Chorus says, ‘Thysa, daughter of Dionysos, who on Ida rejoices with his dear mother in the Iakkhic (Iacchic) revels of tambourines.’"
- Strabo, Geography - Greek Geography C1st B.C. - C1st A.D.