Lewis & Short

rĕd-ămo, āre, v. a., to love back, love in return, return love for love (formed by Cic. after the Gr. ἀντιφιλεῖν): qui vel amare vel, ut ita dicam, redamare possit, Cic. Lae). 14, 49; also in late Lat., Macr. S. 6, 9, 6; Symm. Ep. 3, 2; Ambros. in Luc. 5, § 75; Leo M. Sern. 72; App. Dogm. Plat. 2, p. 19, 18.