δευτεραῖος
From LSJ
νόσημα γὰρ αἴσχιστον εἶναί φημι συνθέτους λόγους → for I consider false words to be the foulest sickness
English (LSJ)
α, ον,
A on the second day, usu. agreeing with the subject of the Verb, δ. ἐκ τοῦ Ἀθηναίων ἄστεος ἦν ἐν Σπάρτῃ Hdt.6.106, cf. X.Cyr.5.2.2, etc.; also τῇ δ. (sc. ἡμέρᾳ) Hdt.4.113.