The verb katofruo/omai -- of which the headword, evidently extracted from somewhere, is the perfect infinitive -- is late, and usually takes e)pi/ or the accusative for the thing to be stern about. However, it does take the genitive (cf. kappa 1102) in its first appearance: Acta Andreae 50 (C2 CE). Note also John of Damascus, Sacra parallela Rupefucaldina, PG 96.460.44 (C8 CE); Antonius III Studites, Oratio p. 116 (C10 CE); and Michael Psellus, Historia Brevis 46.13 (C11 CE). LSJ entry at web address 1.