ἀγώνιος
From LSJ
οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → keeping silence is not shameful; speaking at random is (Menander)
English (LSJ)
(A), ον,
A of or belonging to the contest, ἄεθλος ἀ. its prize, Pi.I.5(4).7; εὖχος Id.O.10(11).63; πούς Simon.29:— epith. of Hermes as president of games, Pi.I.1.60, cf. IG5(1).658; of Zeus as decider of the contest, S.Tr.26:—ἀ. θεοί, in A.Ag.513, Supp.189,242, Pl.Lg.783a, either gods in assembly, or the gods who presided over the great games (Zeus, Poseidon, Apollo, and Hermes), = ἀγοραῖοι θ., Eust.1335.58. 2 ἀγωνίῳ σχολᾷ S. Aj104, either pause from battle, or strenuous rest (oxymoron, cf. Sch.).
ἀ-γώνιος (B), ον,
A without angle, ἀ. σχῆμα ὁ κύκλος Arist.Metaph. 1020a35, cf. Thphr.HP3.14.2.