TUN

n. & v.

--n.

1. a large beer or wine cask.

2 a brewer's fermenting-vat.

3 a measure of capacity, equal to 252 wine gallons.

--v.tr. (tunned, tunning) store (wine etc.) in a tun.

Etymology: OE tunne f. med.L tunna, prob. of Gaulish orig.