Greaves

Webster's Condensed Dictionary- A Condensed Dictionary of the English Language · 1909 · p. 259

grevz, n. pi. Ancient armor for the legs. [OF. greves, Sp. grebas OF. greve, shin, shank.] Greaves, grevz, Graves, gravz, n.pl. The sediment of melted Jullow. [Sw. dial, grevar.]