This verb means to enter by stealth or to creep into gradually, often with negative connotations. In 2 Timothy 3:6, Paul warns of false teachers who 'creep into houses' and captivate vulnerable women. The term originally meant putting on clothing but developed the sense of entering or penetrating. Paul uses it to describe manipulative infiltration tactics: these deceivers don't announce themselves openly but worm their way into private spaces where they can exploit the gullible.