εἰλικρινείᾳ εἰλικρινείας
From eilikrines; clearness, i.e. (by implication) purity (figuratively) -- sincerity.
see GREEK eilikrines
εἰλικρινείᾳ (eilikrineia) − 1 Occurrence
εἰλικρινείας (eilikrineias) − 2 Occurrences