Herbert Weir Smyth, A Greek Grammar for Colleges

““βασιλεῖ φίλοι” friendly to the king” X. A. 2.1.20, ““εὔνους τῷ δήμῳ” well disposed to the people” And. 4.16, ““τοῖς ϝόμοις ἔνοχος” subject to the laws” D. 21.35, ἐχθρὸν ἐλευθερίᾳ καὶ νόμοις ἐναντίον hostile to liberty and opposed to law 6. 25, ““ξυμμαχίᾳ πίσυνοι” relying on the alliance” T. 6.2, φόρῳ ὑπήκοοι subject to tribute 7. 57, ἢν ποιῆτε ὅμοια τοῖς λόγοις if you act in accordance with your words 2. 72, στρατὸς ἴσος καὶ παραπλήσιος τῷ προτέρῳ an army equal or nearly so to the former 7. 42, ““ἀδελφὰ τὰ βουλεύματα τοῖς ἔργοις” plans like the deeds” L. 2.64, ““ἀλλήλοις ἀνομοίως” in a way unlike to each other” P. Tim. 36d. For substantives see 1502.

a. Some adjectives, as φίλος, ἐχθρός, may be treated as substantives and take the genitive. Some adjectives often differ slightly in meaning when they take the genitive.