Lexical Definition

‎πανοικί‎ panoikí (pan-oy-kee') with all the house ^G:ADV
adverb from ‎πᾶς‎ and ‎οἶκος‎

with all his house.

• with the whole family

Abbott-Smith

πανοικεί (Rec., LTr., -κί), adv. (< πᾶς, οἶκος), a word rejected by strict Atticists, though found once in Plat. (Eryx., 392 c); [in LXX: Ex 1:1 (בַּיִת), III Mac 3:27 (where A in each case reads -κίᾳ, the Attic form, cf. Ge 50:8, al.)*;]
with all the household: Ac 16:34.†

Abbott-Smith References

Liddell-Scott-Jones

πανοικί-ί

or πανοικί-εί, = {πανοικεσίᾳ}, [NT+5th c.BC+]

_{LSJ Scripture Refs: Acts.16.34 ☩ LXX.Exod.1.1}