LSJ
Ep. Verb (also in later Prose, Agath. 3.21), rejoice or delight in, ἄλλος ἄλλοισιν ἀνὴρ ἐπιτέρπεται ἔργοις Od. 14.228, cf. Hes. Th. 158 ; ἵπποις Pi. O. 5.22 ; ἀγαθοῖς Thgn. 1218 ; ἐπιτέρπεσθαι θυμόν h.Ap. 204 ; Δήλῳ ἐ. ἦτορ ib. 146 ; c. inf., AP 9.766 (Agath.).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)