άδος (ἡ) :
      1 le nombre trois, groupe de trois, PLAT. Phæd. 104 a, Rsp. 546 c ; PLUT. Fab. 4 ;
      2 le troisième jour, PHIL. 1, 13 ;
      3 la Trinité, ECCL.

Étym. τρεῖς.

άδος, ἡ, (< τρεῖς) 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. ἡ τ.
group of three days, τελευτᾷ ἐν τῇ πρώτῃ τ. Thphr. Vent. 49; the third day, Ph. 1.13.
system of three strophes, Heph. p. 61C. ἡ ἁγία T. the holy Trinity, Cod.Just. 1.1.5.2, etc.

άδος, ἡ, die Drei, Dreizahl, Plat. Phaed. 104a u. Folgde ; Dreieinigkeit, Sp.