Liddell-Scott-Jones

βουλευτικός (bouleutikos) of a counselor ^G:A

βουλευτικός-ευτικός, ή, όν,

of or for the council, β. ὅρκος oath taken by the councillors, [Refs 5th c.BC+]; νόμοι cited in [Refs 4th c.BC+]; ἀρχὴ β. right to sit in the βουλευτικόςή, [Refs 4th c.BC+]; of the Roman Senate, τίμημα, ἐσθής, [Refs 2nd c.AD+]; -κά, τά, funds at the disposal of a council, [Refs 3rd c.AD+]

__2 able to advise or deliberate, ὁ β., opposed to ὁ πολεμικός, [Refs 5th c.BC+]; τὸ β. the deliberative faculty, [Refs]
__II substantive, -κόν, τό, in the Athen. theatre, seats reserved for the Council, [Refs 5th c.BC+]
__II.2 the deliberative and judicial element in the state, [Refs 4th c.BC+]; at Rome, senatorial order, [Refs 1st c.AD+]