1. ξέστης · xestēs — Beekes
ξέστης [m.] measure for fluid and dried things, = Lat. sextarius (Oropos [around 200°], J., AP), also ‘pot, bottle’ (Ev. Marc. 7, 4, pap.). *DER ξεστίον [n.] ‘id’ (Ostr., Orib, Aet.); cf. ἀμνίον, Avxviov, etc; ξεστ-ιαῖος ‘measuring a & (Gal.). ξηρός 1035 *ETYM Backformation from *teotdpiov, which was borrowed from sextdrius with metathesis, under the assumption that this was a diminutive. The suffix is like … — [Beekes, s.v. ξέστης, p. 1085]
2. ξέστης · xestēs — Frisk
ξέστης m. Maß für flüssige und trockne Dinge, — lat. sextärius (Oropos [uın 2008], J., AP u.a.), auch ‘Gefäß, Krug’ (Ev. Mark. 7,4, Pap. u.a.). — Davon ξεστίον n. "ds. (Ostr., Orib., Aöt. u.a.); vgl. auvior, Avyviov u.a.; ξεστ-ιαῖος “einen δ, messend’ (Gal.). — Aus Ἐξεστάριον — sextärius als angeblichen Demin. mit Metathese rückgebildet; Suffix wie in κοδράντης (= lat. guadrans) u.a. — Ähnlich wohl ξέστριξ κριϑή" ἡ … — [Frisk, s.v. ξέστης, p. 1307]
3. ξέστ-ης · xest-ēs — LSJ
1 pintformed from Lat. sextarius, a Roman measure nearly = 1 pint, IG 7.3498.54 (Oropus), J. AJ 9.4.4, AP 11.298, Gal. 13.435, Damocr. ap. eund. 13.989, IG 42(1).93 (Epid., iii/iv A.D.), Phlp. in APr. 27.19.
II pitcher, cuppitcher, cup, Ev.Marc. 7.4, POxy. 921.23 (iii A.D.), Harp.Astr. in Cat.Cod.Astr. 8(3).139.