Толковый словарь английского языка Oxford English Reference - fy

suffix forming: 1 verbs from nouns, meaning: a make, produce (pacify; satisfy). b make into (deify; petrify). 2 verbs from adjectives, meaning 'bring or come into such a state' (Frenchify; solidify). 3 verbs in causative sense (horrify; stupefy). Etymology: from or after F -fier f. L -ficare, -facere f. facere do, make