Lewis & Short

consentānĕus, a, um, adj. [consentio], agreeing or according with something, suited to, becoming, meet, fit, proper (in good prose; most freq. in Cic.).

        1. (α) With cum: quod quidem erat consentaneum cum iis litteris, quas ego Romae acceperam, Cic. Fam. 3, 6, 2.
        2. (β) With dat. (so most freq.): formula Stoicorum rationi disciplinaeque maxime consentanea, Cic. Off. 3, 4, 20: mors ejus vitae sanctissime actae, id. Phil. 9, 7, 15; cf. γ: actiones his (motibus, etc.), id. N. D. 2, 22, 58: hae disciplinae sibi, id. Off. 1, 2, 6: obscura somnia minime majestati deorum, id. Div. 2, 65, 135: non necesse esse optumae rei publicae leges dare consentaneas? id. Leg. 2, 10, 23; id. Fin. 5, 20, 60; id. Part. Or. 2, 7: his temporibus consentaneum genus litterarum, id. Fam. 4, 13, 1: illa divisio illi, qui hoc proposuerat, * Quint. 6, 3, 106; Cod. Just. 7, 6, 1, § 8: sententia utilitati rerum consentanea. Dig. 17, 1, 6, § 7.
        3. * (γ) Absol.: vir vitā et morte, consistent, Vell. 2, 63, 2; cf. β.
          Subst.: consentānĕa, ōrum, n., concurrent circumstances: ex consentaneis (argumenta ducere), Cic. de Or. 2, 40, 170.
          Hence,
      1. b. Consentaneum est, it agrees with something, it is according to reason, fitting, consistent, proper, etc.
        1. (α) With inf., with or without dat.: quid consentaneum sit ei dicere, qui, etc., Cic. Off. 3, 33, 117: cum diceret, ei aliquid dicere consentaneum esse, id. Ac. 2, 9, 28: non est consentaneum, qui metu non frangatur, eum frangi cupiditate, id. ib. 1, 20, 68; id. N. D. 2, 15, 42; id. Tusc. 5, 9, 25.
        2. (β) With ut, * Plaut. Bacch. 1, 2, 31.
          Adv.: con-sentānĕē, in harmony with (late Lat. and rare): consentanee cum naturā vivere, Lact. 3, 8, 20: narrare aliquid, according to truth, Hier. in Rufin. 3, 1 fin.