κᾰπηλ-ικός · kapēl-ikos — LSJ
of or for a κάπηλος, ζυγόν Dinol. 2 (fort. καπανικόν) ; ἀργύρωμα IG ΙΙ(2).110 (Delos, iii B.C.), cf. 111; mercenary, ἦθος M.Ant. 4.28; σοφιστής Poll. 4.48; ἡ -ική (sc. τέχνη), = καπηλεία, Pl. Sph. 223d, Arist. Pol. 1257a18: καπηλικόν, τό, camp-followers, sutlers of an army, Arr. Tact. 2.1; but also, tax on retail-traders, BGU 1237 (iii/ii B.C.).
like a petty trader, knavish, cozening, κ. μέτρα φιλεῦσα AP 9.229 (Marc. Arg.); ὕθλος Porph. Chr. 49. Adv. -κῶς, ἔχειν to be vamped up for sale, Ar. Pl. 1063; τὰ πράγματα κ. διανέμων Plu. Isid. 2.369c; in a mercenary spirit, Gal. 14.216: Comp. -ώτερον Numen. ap. Eus. PE 14.8.