Abbott-Smith Manual Greek Lexicon
εἰλικρινής (G1506)
2 ** εἰλικρινής , -ές , [in LXX: Wi 7:25 א B * ;] unalloyed, pure (Lat. sincerus ; v. DCG , ii, 635 a ); of unmixed substances; of abstract ideas; of ethical purity: Phl 1:10 , II Pe 3:1 .† SYN. : ἁγνός (q.v.), καθαρός , cf. Tr., Syn. : §lxxxv; DB , iv, 176 a ; Cremer, 378; Westc. on I Jo 3:3 .
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain