verjuice
Concise Oxford English Dictionary © 2008 Oxford University Press:
verjuice /ˈvəːdʒuːs/
▶noun a sour juice obtained especially from crab apples or unripe grapes.
– origin ME: from OFr. vertjus, from vert ‘green’ + jus ‘juice’.
'verjuice' also found in these Oxford entries:

