LSJ Gloss:ἘπικούρειοςEpicureanDodson:Ἐπικούρειοςan Epicureanan Epicurean, one who holds the tenets of Epicurus.
Strong's:Ἐπικούρειος an Epicurean or follower of EpicurusDerivation: from Ἐπίκουρος (compare G1947) (a noted philosopher);KJV Usage: Epicurean. G1947
TBESG:ἘπικούρειοςEpicureanN:N--T Ἐπικούριος (Rec. -ειος), -ου, ὁ an Epicurean, a follower of Epicurus: Act.17:18.† (AS)
Thayer:1) belonging to the sect of Epicurius, the philosopherLiteral: Epicurean = "a helper: defender"
Ἐπικούρειος Epikoureios ep-ee-koo'-ri-os From Ἐπίκουρος Epikouros (compare G1947; a noted philosopher); an Epicurean or follower of EpicurusKJV Usage: Epicurean.
ἐπικουρία epikouria ep-ee-koo-ree'-ah From a compound of G1909 and a (prolonged) form of the base of G2877 (in the sense of servant); assistanceKJV Usage: help.