Lexical Definition

‎περίοικος‎ períoikos (per-ee'-oy-kos) neighboring ^G:A
from ‎περί‎ and ‎οἶκος‎

neighbour.

• housed around, i.e. neighboring (used elliptically as a noun)

Abbott-Smith

περί-οικος, -ον, [in LXX for כִּכָּר, etc.;]
dwelling around; as subst., ὁ π., a neighbour: Lk 1:58 (cf. πλησίον).†

Abbott-Smith References

Liddell-Scott-Jones

περίοικος, ον,

dwelling round, οἱ π. Λίβυες [Refs 5th c.BC+]; οἱ π. neighbours, [Refs 4th c.BC+]; ἡ π. (i.e. χώρα) [LXX]; τὸ π. τοῦ Ἰορδάνου[LXX]; τὰ π. the neighbouring countries, [Refs 2nd c.AD+]

__II in Laconia, οἱ π. the inhabitants of the towns dependent on Sparta, [Refs 5th c.BC+]; also in Crete, [Refs 4th c.BC+]: hence generally, dependent, subject, περιοίκους τε καὶ οἰκέτας ἔχοντες [Refs 5th c.BC+]
__III geographically, περίοικοι, οἱ, those who live on the same parallel of latitude as ourselves but 180° East or West of us, opposed to ἄντοικοι (see. Addenda), ἀντίποδες (which see). [Refs 1st c.BC+]

_{LSJ Scripture Refs: LXX.Gen.19.25}