[Middle English, after Doornik (Tournai), a city of southwest Belgium.]
dor·nick 2 (dôr'nĭk) n.
Lower Northern U.S. A stone small enough to throw from a field being cleared.
[Probably from Irish Gaelic dornóg, a small round stone.] The word dornick is used from Pennsylvania westward to Iowa. It probably comes from Irish Gaelic dornóg, "a small round stone." Craig M. Carver, author of American Regional Dialects, attributes the introduction of the term to the Scotch-Irish Protestants from Northern Ireland who emigrated to America in the 18th century. Dornick must have been one of the "few purely Irish terms" in the otherwise English and Scots lexicon of the Scotch-Irish.