Webster's Revised Unabridged Dictionary · 1913

Marc

Marc , noun

[French]

The refuse matter which remains after the pressure of fruit, particularly of grapes.

Marc , noun

[Anglo-Saxon marc; akin to German mark, Icelandic mork, perh. akin to English mark a sign. r106, 273.]

1.
A weight of various commodities, esp. of gold and silver, used in different European countries. In France and Holland it was equal to eight ounces.
2.
A coin formerly current in England and Scotland, equal to thirteen shillings and four pence.
3.
A German coin and money of account. See Mark.