τριακάς
κατ' ἀρχῆς γὰρ φιλαίτιος λεώς → people are always ready to blame the rulers, people are against authority, people were fond of anything by which they could call authority in question
English (LSJ)
Ep. and Ion. τρῐηκάς, άδος, ἡ, (τρεῖς, τρία)
A the number thirty, ἐς τριακάδας δέκα ναῶν A.Pers.339. II the thirtieth day of the month. Hes.Op.766, IG12.845.2, 7.2712.69 (Acraeph.), PCair.Zen.150.8 (iii B. C.), Dsc.Eup.1.146, Hippiatr.97; τ. ἡ πικρή (when school fees were due) Herod.3.9; first used by Thales, acc. to D.L.1.24. At Athens the τριακάδες were dedicated to the memory of the dead, Harp., Poll.1.66, etc.; offerings were made to Hecate, Ath.7.325a, etc.; ἡ τῶν τ. ἀνιέρωσις Tab.Defix.99.12; ἐπαρᾶσθαι ταῖς τριακάσιν SIG286.13 (Milet., iv B. C.); of a festival in the cult of Zeus Panamaros, ib.900.36 (iv A. D.). 2 a month, containing 30 days, Luc.Luct.16, Rh.Pr.9. III at Athens, a religious association of thirty persons, fraction of the deme, IG22.1214.18, cf. Poll.8.111. 2 at Sparta, either = 30 families (1/10 of an oba), or = 10 families (1/30 of an oba), or simply a company of thirty, Hdt. 1.65.
Greek (Liddell-Scott)
τριᾱκάς: Ἐπικ. καὶ Ἰων. τριηκάς, άδος, ἡ συνῃρ. ἀντὶ τοῦ ἀχρήστου τριακοντάς· (τρεῖς, τρία). - ὁ ἀριθμὸς τριάκοντα, ἐς τριακάδας δέκα ναῶν Αἰσχύλ. Πέρσ. 339. ΙΙ ἡ τριακοστὴ ἡμέρα τοῦ μηνός, Ἡσ. Ἔργ. κ. Ἡμ. 764, Συλλ. Ἐπιγρ. 1625. 90· πρῶτον ἐν χρήσει παρὰ τῷ Θάλητι κατὰ τὸν Διογ. Λ. 1. 24. Ἐν Ἀθήναις αἱ τριακάδες ἦσαν καθιερωμέναι εἰς ἀνάμνησιν τῶν νεκρῶν, ὡς τὸ παρὰ Ρωμαίοις novemdialia, Ἁρποκρ., Πολυδ. Α΄, 66, κλπ.· προσεφέροντο δὲ θυσίαι τῇ Ἑκάτῃ, Ἀθήν. 325Α, κλπ.· ἡ τῶν τρ. καθιέρωσις Συλλ. Ἐπιγρ. 1304. 2) μὴν περιέχων 30 ἡμέρας, Λουκ. π. Πένθους 16, Ρητόρ. Διδάσκ. 9. ΙΙΙ. ἐν Ἀθήναις, πολιτικὴ διαίρεσις ἑκάστης φυλῆς περιέχουσα τριάκοντα οἰκογενείας, = γένος, Συλλ. Ἐπιγρ. 101. 18, Πολυδ. Η΄, 111, Böckh P. E. 1. 47. 2) ἐν Σπάρτῃ, Ἡρόδ. 1. 65, περιεῖχεν ἢ 30 οἰκογενείας (1/10 τῆς ὠβῆς), ἢ 10 οἰκογενείας (1/30 τῆς ὠβῆς), Müller Δωρ. 3.5. § 6.
French (Bailly abrégé)
άδος (ἡ) :
1 le nombre trente ; trentaine ; particul. réunion de trente jours, un mois;
2 la trentième partie, particul. le trentième jour du mois;
3 à Sparte réunion de trente familles.
Étymologie: cf. τριάκοντα.