Lewis & Short

ag-gaudĕo (adg-), ēre, v. n., to be delighted with, to delight in (late Lat.): ego eram, cui aggaudebat, Lact. 4, 6; transl. of ἐγὼ ἤμην ᾗ προσέχαιρεν, LXX. Prov. 8, 30.