From G3844 and G1525; to come in along {side} that {is} supervene additionally or stealthily: - come in {privily} enter.
Verse
Matrix
Jud 1:4For there areG3921 certain men crept in unawaresG3921, who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying the only Lord God, and our Lord Jesus Christ.