Lexical Definition

‎παρεισάγω‎ pareiságō (par-ice-ag'-o) to introduce ^G:V
from ‎παρά‎ and ‎εἰσάγω‎

privily bring in.

• to lead in aside, i.e. introduce surreptitiously

Abbott-Smith

* παρ-εισ-άγω,
1. to lead in by one's side, bring forward, introduce.
2. In late writers, to introduce or bring in secretly: II Pe 2:1.†

Abbott-Smith References

Liddell-Scott-Jones

παρεισάγω-άγω [ᾰγ],

perfect παρεισάγωῆχα [Refs 1st c.BC+]:—lead in by one's side, bring forward, introduce, of persons brought into a public assembly, τοὺς παῖδας τῶν ἐν τῷ πολέμῳ τετελευτηκότων [Refs 5th c.BC+]; propose a candidate for a succession, [Refs 1st c.AD+]

__2 with a notion of secrecy, π. [τοὺς Γαλάτας] εἰς Ἔρυκα introduce, admit them into the city, [Refs 2nd c.BC+]
__3 introduce into a poem or narrative, κινδύνους [Refs 4th c.BC+] [same place], etc.; τὸν Ἀννίβαν ἀμίμητόν τινα π. στρατηγόν represent him as.., [Refs 2nd c.BC+] —passive [Refs]
__4 introduce doctrines, customs, etc., τὰς ὑπὲρ τῶν ἐν Ἅιδου διαλήψεις εἰς τὰ πλήθη π. [NT+2nd c.BC+]:—passive, μουσικὴν παρεισάγωῆχθαι τοῖς ἀνθρώποις [Refs 4th c.BC+]

_{LSJ Scripture Refs: 2Pet.2.1}