Cognate: 19 agathōsýnē (from 18 /agathós, "inherently good," see there) – properly, intrinsic goodness (especially as a unique quality and condition, note the -synē suffix); as relating to believers, the goodness that comes from God (Souter) and showing itself in spiritual, moral excellence (virtue).

19 (agathōsynē) occurs four times in the NT, and is apparently strictly a biblical term, i.e. it does not seem to appear at all in secular Greek/the papyri (see N. Turner, Christian Words, 89). See 18 (agathos).

From agathos; goodness, i.e. Virtue or beneficence -- goodness.

see GREEK agathos

ἀγαθῇ — 4 Occ.
ἀγαθήν — 8 Occ.
ἀγαθῆς — 2 Occ.
ἀγαθῷ — 7 Occ.
ἀγαθῶν — 6 Occ.
ἀγαθοῖς — 3 Occ.
ἀγαθὸν — 33 Occ.
ἀγαθὸς — 10 Occ.
ἀγαθοῦ — 8 Occ.
ἀγαθοὺς — 2 Occ.
ἀγαθωσύνης — 2 Occ.
ἀγαλλιάσει — 3 Occ.
ἀγαλλιάσεως — 1 Occ.
ἀγαλλίασις — 1 Occ.
ἀγαλλιᾶσθε — 3 Occ.
ἀγαλλιαθῆναι — 1 Occ.
ἀγαλλιῶμεν — 1 Occ.
ἀγαλλιώμενοι — 1 Occ.
ἠγαλλιάσατο — 4 Occ.
ἠγαλλίασεν — 1 Occ.