Strong's #1506: eilikrines (pronounced i-lik-ree-nace')
from heile (the sun's ray) and 2919; judged by sunlight, i.e. tested as genuine (figuratively):--pure, sincere.
Thayer's Greek Lexicon:
̓́
eilikrinēs
1) pure, sincere, unsullied
2) found pure when unfolded and examined by the sun' s light
Part of Speech: adjective
Relation: from heile (the sun' s ray) and G2919
Citing in TDNT: 2:397, 206
Usage:
This word is used 2 times:
Philippians 1:10: "things that are excellent; that ye may be sincere and without offense till the day"
2 Peter 3:1: "both which I stir up your pure minds by way of remembrance:"