τρῐάς,άδος,ἡ, (τρεῖς)
A. the number three, triad,Ion Hist. 12 note, Pl. Phd. 104a , al.; on its significance in the Pythag. philosophy,v.
Arist. Cael. 268a13 , Metaph. 1081a34 , b12 ;τρισσὴν . . ἐτέων τριάδα(sc.γεγονώς), i. e. nine years old, Syria 5.338 (Sidon);τ. ἡ ἀκατονόμαστος,of the mystical Man from heaven (θεός—ἄγγελος—ἄνθρωπος παθητός), Zos.Alch. p.230
B.
2. ἡ τ. group of three days,
τελευτᾷ ἐν τῇ πρώτῃ τ.
Thphr. Vent. 49
; thethird day,
Ph. 1.13 .
3. system of three strophes,Heph. p.61C.
4. ἡ ἁγίαT. the holyTrinity, Cod. Just.
1.1.5.2 , etc.