and i stumbled on one this week too, carboy.

while carboy is a word i know, i would tend to use demijohn (discussed in the not to distant past, if any new comer's want to look it up)
Carboy is technically from persian, not arabic, qarabah, a large leather milk bottle, but the english meaning is a large bottle (glass or plastic) enclosed in basket work or a wooden crate, especially used for for corrosive liquids.