Abbott-Smith Manual Greek Lexicon
καθαρότης (G2514)
1 καθαρότης , -ητος, ἡ ( καθαρός ), [in LXX: Ex 24:10 ( טֹהַר ), Wi 7:24 *;] purity , cleanness : c. gen., He 9:13 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain