Strong’s Greek
G3919 — pareisago
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
παρεισάγω
pareisago — pronounced par-ice-ag'-o
from 3844 and 1521; to lead in aside, i.e. introduce surreptitiously:--privily bring in. see GREEK for 3844 see GREEK for 1521
1 occurrence in the KJV.
2 Peter 2:1
But there were false prophets also among the people, even as there shall be false teachers among you, who privily shall bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.