ἄνετε is more than “ἐᾶτε”, since it implies relaxing a strain; cp. 721: Ant. 1101“ἄνες” (“κόρην”), release her.
ἄλυτα, irremediable; cp. 939: so “λύσις”, of a remedy ( Ant. 598 n.).
κεκλήσεται: they must be permanently accounted such: cp. Ai. 1368“σὸν ἆρα τοὔργον, οὐκ ἐμόν, κεκλήσεται”. So “κεκλήσομαι”, O.T. 522.
231 f. For ἐκ, where the simple gen. would suffice, cp. 291, 987.
ἀνάριθμος has the second “α” short (as in Aesch. Pers. 40, etc.). For the form of the word, and also for the gen. θρήνων, cp. Soph. Tr. 247“ἡμερῶν ἀνήριθμον” (n.).