Lexical Definition

‎εἴσειμι‎ eíseimi (ice'-i-mee) to enter ^G:V
from ‎εἰς‎ and (to go)

enter (go) into.

• to enter

Abbott-Smith

εἴσ-ειμι [in LXX for בּוֹא ;]
to go in, enter: seq. εἰς, Ac 3:3 21:26, He 9:6; πρὸς Ἰάκωβον, Ac 21:18.†

Abbott-Smith References

Liddell-Scott-Jones

εἴσειμι,

infinitive -ιέναι, serving as future to εἰσέρχομαι: imperfect εἰσῄειν:— enter, go into, οὐδ᾽ Ἀχιλῆος ὀφθαλμοὺς εἴσειμι I will not come before Achilles' eyes, [εἴσειμι μετ᾽ ἀνέρας 8th c.BC: Odyssea Homerus Epicus “Odyssey” 18.184; παρὰ βασιλέα 5th c.BC: Herodotus Historicus 1.99; mostly with εἰς, ἐς τὸ μέγαρον [prev. work] 65, etc.">Refs 8th c.BC+]; πρός τινα [Refs 5th c.BC+]; ἐσιέναι ἐς σπονδάς enter into a treaty, [Refs 5th c.BC+] the ensuing month, [Refs 5th c.BC+]

__II of the Chorus or actors, come upon the stage, enter, [Refs 5th c.BC+]; τὸ τοὺς τυράννους..εἰσιέναι take the part of king, [Refs 4th c.BC+]
__III of public speakers, come into the assembly, εἰς ἀγοράν [Refs 5th c.BC+]; of judges, come into court, εἰ. κρινοῦντες [Refs 4th c.BC+]
__III.2 of the parties to a lawsuit, come before the court, εἰς ὑμᾶς [Refs 5th c.BC+]
__III.3 of the charges or actions, ἡ δίκη εἰσῄει [Refs 4th c.BC+]; δίκας εἰσιέναι κατά τινος enter upon actions, [Refs 4th c.BC+]
__III.4 enter on an office, εἰς ἀρχήν [Refs 4th c.BC+]; ὁ ἐσιών the new king, [Refs 5th c.BC+]
__IV metaphorically, come into one's mind, Ἀστυάγεα ἀνάγνωσις ἐσήιε [Refs 5th c.BC+]
__IV.2 impersonal, εἰσῄει αὐτοὺς ὅπως ἂν.. they began to think how they might.., [Refs 5th c.BC+]: with infinitive, οὐδενὸς εἰσῄει μοι φθονεῖν [Refs 4th c.BC+]
__V rarely of things, τὰ εἰσιόντα what enters into one, food, [Refs 5th c.BC+]