What is the language of origin for chalkboard

An Americanism dating back to 1935–40; chalk + board

Chalk: before 900; Middle English chalke, Old English cealc < Latin calc- (stem of calx ) lime

Board: before 900; Middle English, Old English bord board, table, shield; cognate with Dutch boord board, bord plate, German Bort, Old Norse borth, Gothic -baurd

The origins of the chalkboard date back to the early decades of the 19th century. The forerunner of the chalkboard was the small, paddle-shaped hornbook. This item had been in use in schools of medieval England, and by the time of the Revolutionary War era in colonial America, it was carried by legions of students.