Lexical Definition

‎ἐπιδημέω‎ epidēméō (ep-ee-day-meh'-o) to sojourn ^G:V
from a compound of ‎ἐπί‎ and ‎δῆμος‎

(be) dwelling (which were) there, stranger.

• to make oneself at home, i.e. (by extension) to reside (in a foreign country)

Abbott-Smith

* ἐπι-δημέω, -ῶ (< δῆμος);
1. to be at home (Thuc., Plat., al.),
2. to stay in a place, sojourn (Plat., Xen., al.; and v. MM, Exp., xiv): Ac 2:10 17:21; seq. ἐν, ib. 18:27 (WH, mg.).†

Abbott-Smith References

Liddell-Scott-Jones

ἐπιδημέω-έω,

to be at home, live at home, opposed to ἀποδημέω, [ἐπιδημέωοῦντες 5th c.BC: Antipho Orator 6.46; ἐ. τρία ἔη Andocides Orator [{5-6th c.BC}] 1.132 ">Refs 6th c.BC+]; ἐ. Ἀθήνησι stay at home at Athens, [Refs 5th c.BC+]

__2. of diseases, to be prevalent, epidemic, [Refs 5th c.BC+]
__II. come home, [ἐπιδημέωεῖ Menander Comicus [{4-3rd c.BC}] “Γεωργός” 19 ">Refs 5th c.BC+].
__III. of foreigners, come to stay in a city, reside in a place, οἱ -οῦντες ἐν [Refs 6th c.BC+]; ἐ. εἰς Μέγαρα come to Megara to stay there, [Refs 6th c.BC+]; ἐ. τοῖς μυστηρίοις to be present at, attend them, [ἐπιδημέωήσαντας ἅπαντας τῶν Ἑλλήνων">Refs 4th c.BC+] all who were present[at the festival], [ἐπιδημέωήσαντος 3rd c.BC: Callimachus Epicus “Hymnus in Apollinem” 13 ">Refs 3rd c.BC+]: laterc. dative,[Refs 2nd c.BC+]
__III.2. absolutely,stay in a place, be in town, [ἐπιδημέωοῦσιν 5th c.BC: Lysias Orator 12.35, compare “Inscription Prien.” 108.286 (2nd c.BC), NT.Acts.17.21; Πρωταγόρας ἐπιδεδήμηκε; 5th-6th c.BC: Plato Philosophus “Prt.” 309d: \_metaphorically\_, ἐ. θίασος Μουσῶν Aristophanes Comicus [{5-6th c.BC}] “Thesmophoriazusae” 40 ">NT+6th c.BC+].
__III.3. ἐ. τινί visit a person, [Refs 4th c.AD+]

_{LSJ Scripture Refs: Acts.17.21}