G0019
ἀγαθωσύνη
goodness
ἀγαθωσύνη (on the termination, see: ἁγιότης, and cf . WH, App., 152; MM, VGT, see word), -ης, ἡ (ἀγαθός), [in LXX for טוֹבָה, טוֹב, טוּב, only in Heb. bks. ;] goodness (representing "the kindlier, as δικαιοσύνη, the sterner element in the ideal character," AE, Eph., 5:9; on its relation to χρηστότης, see Tr., Syn., §lxiii): Rom.15:14, Gal.5:22, 2Th.1:11.† (AS)
Full Thayer's lexicon entry
ἀγαθωσύνη — agathōsýnē
ἀγαθωσύνη, (ης, ἡ (on its formation see Winers grammar, 95 (90); WHs Appendix, p. 152), found only in Biblical and ecclesiastical writings, uprightness of heart and life (A. V. goodness): 2Th 1:11; Gal 5:22 (unless here it denote kindness, beneficence); Rom 15:14; Eph 5:9. (Cf. Trench, § lxiii.; Ellicott and Lightfoot on galatians, the passage cited.)
4 occurrences
Romans (1), Galatians (1), Ephesians (1), II Thessalonians (1)