drier (n.)

late 15c. (early 14c. as a surname, Dryere; Alic le Dreyster is attested from 1292) "one who dries and bleaches cloth," agent noun from dry (v.). As "that which dries or is used in drying," 1520s. Dryer was used of machines from 1848 (drying-machine is by 1819).