II. opposition, “αἰώνιος” Ph.1.577; “ἐπὶ τῇ ἀρχῇ” J.AJ 17.11.2; “τύχης” Plu.Aem.36; “ἐξ ἀ. ἀγωνίζεσθαι” in pitched battle, Hdn. 5.4.4; ἴσην ἀ. ἔχειν weigh equally, Arist.Mu.397a1.
III. counterplea, set-off, e.g. benefit conferred balanced against injury done, Hermog.Stat.2, cf. 6 (pl.), Arg.Lycurg.