Bailly
v. εἴσω.
Bailly 2020 Hugo Chávez Gérard Gréco, André Charbonnet, Mark De Wilde, Bernard Maréchal & contributeurs / Licence Creative Commons Attribution - Pas d'Utilisation Commerciale - Pas de Modification — « CC BY-NC-ND 4.0 »
LSJ
Adv. related to ἐς as εἰς to εἴσω; Comp., ἐσωτέρω τῆς Ἑλλάδος Hdt. 8.66; Sup., ὡς ἐσωτάτω τῆς μασχάλης Hp. Art. 7 ; τὰ ἔ. Id. Oss. 9, cf. Corn. ND 28.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
TBESG
ἔσω Ion, and old Att.. form of εἴσω
(< εἰς),
adv., [in LXX for etc. ;]
__1. prop., after verbs of motion (to) within, into: Mat.26:58, Mrk.14:54; with genitive, Mrk.15:16.
__2. As freq. in cl. (= cl. ἔνδον), after verbs of rest, within: Jhn.20:26, Act.5:23; οἱ ἔ. (opp. to οἱ ἔξω), 1Co.5:12; ὁ ἔ. ἄνθρωπος, Rom.7:22, 2Co.4:16, Eph.3:16.†
(AS)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars