Dornick

Dornick is cited in the Oxford English Dictionary as a dialectical US term originating in the mid-19th century, meaning "pebble, stone or small boulder." The OED suggests a derivation from Irish "dornog" (small stone).

The Cassell Dictionary of Slang notes it was also used to mean "coin."

"Hard as dornick" was a colloquial way of affirming a man's toughness in Indiana in 1939 (Paul G. Brewster, American Speech 14:4, 261-8).

Cartoonist George Herriman used "dornick" frequently in his strip Krazy Kat to refer to the brick which Ignatz Mouse threw at Krazy's head in most episodes.

The word and its variant spelling, "Donnick," persist in placenames, for example, Oak Donnick Floodway on the St. Francis River. Local residents of the Lake City, Arkansas area refer to "Cane Donnick," also on the St. Francis River in the vicinity of "Cane Island" (an erstwhile community across the river from Lake City).

Dornick also refers to a thick cloth which gets its name from the name of the Flemish town 'Doornick' where it was first manufactured