δυαδίζομαι

From LSJ

κακῆς ἀπ' ἀρχῆς γίγνεται [[τέλος]] κακόν → from a bad [[beginning]] comes a bad end (Euripides' Aeolus fr. 32)

Source

Spanish (DGE)

hacerse, convertirse en díada ἡ δυαδιζομένη ... μονάς Dam.in Prm.147, cf. 189.