Strong’s Greek
G3920 — pareisaktos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
παρείσακτος
pareisaktos — pronounced par-ice'-ak-tos
from 3919; smuggled in: unawares brought in. see GREEK for 3919
1 occurrence in the KJV.
Galatians 2:4
And that because of false brethren unawares brought in, who came in privily to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage: