θριαί

ῶν, αἱ
A. pebbles used in divination, Philoch. 196, Call. Ap. 45, cf. Sch. ad loc., EM 455.34.
II. personified as nymphs of Parnassus, Philoch. l.c., Sch.Call.l.c., dub. cj. in h.Merc. 552.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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