Strong's G1506 — εἰλικρινής (adjective)
eilikrines (ei-lik-ree-nace') adj.
1. judged by sunlight
2. (figuratively) tested as genuine
[from heile "the sun's ray" and G2919]
KJV: pure, sincere 
Root(s): G2919 
Hebrew root: κρίνω
Occurrences: 2