Strong's Greek #3355 - μετρητής, οῦ, ὁ metrétés (a measurer)

firkin, a liquid measure

From metreo; a measurer, i.e. (specially), a certain standard measure of capacity for liquids -- firkin.

see GREEK metreo

Strong's 3355: μετρητής

μετρητής (on the accent see Chandler § 51f), μετρητου, ὁ (μετρέω), properly, a measurer, the name of a utensil known as an amphora, which is a species of measure used for liquids and containing 72 sextarii or ξεστοι (i. e. somewhat less than nine English gallons; see B. D. under the phrase, Weights and Measures, at the end (p. 3507 American edition)) (Hebrew בַּת, 2 Chronicles 4:5): John 2:6. (Polybius 2,15, 1; Demosthenes, p. 1045, 7; Aristotle, h. a. 8, 9.)

Strong's Greek: 3355. μετρητής (metrétés) — 1 Occurrence

John 2:6 - N-AMP
GRK: χωροῦσαι ἀνὰ μετρητὰς δύο ἢ
NAS: or thirty gallons each.
KJV: or three firkins apiece.
INT: having space for metretae two or