Lexical Definition

‎δημόσιος‎ dēmósios (day-mos'ee-os) public ^G:A
from ‎δῆμος‎

common, openly, publickly.

• public
• (feminine singular dative case as adverb) in public

Abbott-Smith

** δημόσιος, -α, -ον (< δῆμος), [in LXX: II Mac 6:10, III Mac 2:27 4:7 * ;]
belonging to the people, public: Ac 5:18; dat. fem. used adverbially (cl.);
(a) at the public expense, by public consent;
(b) publicly: Ac 16:37 18:28 20:20.†

Abbott-Smith References

Liddell-Scott-Jones

δημόσιος,

Doric dialect δᾱμ-, α, ον (ος, ον [Refs 5th c.BC+], belonging to the people or state, κτέανα [Refs 6th c.BC+]; χώρα, opposed to ἱερά, ἰδία, [Refs 4th c.BC+]; τὰ ἱερὰ τὰ δ., opposed to ἰδιωτικά, [Refs]; ἀγῶνες, δίκαι, [Refs 4th c.BC+]; δ. λόγος, = Latin fiscus, [Refs]; δημόσιον εἶναι, γίγνεσθαι, to be, become state-property, be confiscated, [Refs 5th c.BC+]

__b used by the public, βαλανεῖα, λουτρόν, [Refs 2nd c.BC+]
__2 common, δημοσιώτατος τρόπος, τόπος, [δημόσιος κακίη ">Refs 4th c.BC+]epidemic, [Refs 5th c.BC+]
__II as substantive:
__II.a δημόσιος (i.e. δοῦλος), ὁ, any public slave or servant, as, the public crier, [Refs 5th c.BC+]; policeman, [Refs 5th c.BC+]; public notary, ={γραμματεύς}, [Refs 4th c.BC+]; public executioner, [Refs 1st c.BC+]: generally, public official, τὸν ἀρχέφοδον καὶ τοὺς ἄλλους δημοσίους [Refs 2nd c.AD+]
__II.b public victim, ={φάρμακος}, [Refs 5th c.BC+]
__II.c harlot, prostitute, [Refs 7th c.BC+]
__III neuter, δημόσιον, τό, the state, [Refs 5th c.BC+]public officials, [Refs 5th c.BC+]
__III.b public building, hall, [Refs 5th c.BC+]
__III.c treasury, ={τὸ κοινόν, ἀργύριον ὀφείλοντες τῷ δ}. [Refs 5th c.BC+]
__III.d the public prison, [Refs 5th c.BC+]
__III.2 τὰ δ. public archives, [Refs]
__III.2.b public dues, taxes, in plural, [Refs 3rd c.AD+]
__IV feminine, δαμοσία (i.e. σκηνή), ἡ, tent of the Spartan kings: hence οἱ περὶ δαμοσίαν the king's council, [Refs 5th c.BC+]
__V as adverb:
__V.1 dative δημοσία, Ionic dialect -ίῃ, at the public expense, [Refs 5th c.BC+]; by public consent, [Refs 4th c.BC+]; on public service, δ. ἀποδημεῖν [Refs]; δ. κρίνειν try in the public courts, [Refs 5th c.BC+]; δ. τεθνάναι to die by the hands of the public executioner, [Refs 4th c.BC+]
__V.2 as a community, opposed to ἰδίᾳ, [Refs 5th c.BC+]
__V.3 commonly, popularly, τὰ δ. νομιζόμενα ἀγαθά [Refs 2nd c.AD+]
__V.4 regular adverb -ίως[Refs 2nd c.AD+]; on public business, καταπλεῦσαι [Refs 3rd c.BC+]