ἀκρόγωνος
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
Spanish (DGE)
-ον
angular
1 fig. piedra angular (sc. λίθος) de Cristo Σωτῆρα τὸν ἀκρόγωνον ἐκμιμούμενος Gr.Naz.M.37.1246A.
2 subst. τὸ ἀ. ángulo extremo, límite extremo τῆς ἐπαύλεως PMasp.109.26, cf. 151.113 (ambos VI d.C.).
