'Hone slate' definitions:

Definition of 'Hone slate'

From: GCIDE

Hone \Hone\, n. [AS. h[=a]n; akin to Icel. hein, OSw. hen; cf. Skr. [,c][=a][.n]a, also [,c][=o], [,c]i, to sharpen, and E. cone. [root]38, 228.] A stone of a fine grit, or a slab, as of metal, covered with an abrading substance or powder, used for sharpening cutting instruments, and especially for setting razors; an oilstone. --Tusser. [1913 Webster]
Hone slateSee Polishing slate.
Hone stone, one of several kinds of stone used for hones. See Novaculite. [1913 Webster]