idiom’

The Century Dictionary: The Encyelopedic Lexicon of the English Language · 1887 · p. 318

(id’i-um), n. [Formerly also ideom; D. restored with intelligent reverence. C. M. In gleby, Shakespeare: the Man and the Book, I. 118. idioom = G. Dan. Sw. idiom = F. idiome = Sp. Peg. It. idiom a,