Rainwater

Rainwater
Once a trademark for a particular Madeira, it is now a generic term for a lighter, not too sweet, style.
Rancio (rahn'-see-o) ...

Rainwater: A style of Madeira. The origin of the name is unclear, but it emerged in England in the 18th century. Currently a generic name for a medium-dry Madeira.

RAINWATER
Generic name used for a medium-dry style of Madeira, whose origin is a little sketchy but thought to have come from 18th century England ...

See also: Vineyard, Taste, Tannin, Extract, Grenache