Abbott-Smith Manual Greek Lexicon
χρηστολογία (G5542)
1 *† χρηστολογία , -ας, ἡ ( χρηστός, λέγω ), fair speaking : in bad sense, Ro 16:18 (in good sense also, eccl.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain