flagon
Concise Oxford English Dictionary © 2008 Oxford University Press:
flagon /ˈflag(ə)n/
▶noun a large container for serving or consuming drinks.
■ a container holding the wine for the Eucharist.
■ a large bottle in which wine or cider is sold, typically holding 1.13 litres (about 2 pints).
– origin ME: from OFr. flacon, based on late L. flasco, flascon-, of unknown origin.
'flagon' also found in these Oxford entries:

