

With the latter, a mark is made when a dead key is typed, but unlike normal keys, the paper carriage does not move on and thus the next letter to be typed is printed under that accent. Keys can be dedicated to precomposed characters or alternatively a dead key mechanism can be provided.

On typewriters designed for languages that routinely use diacritics (accent marks), there are two possible solutions. Ñ/ñ is present as a precomposed character only. Spanish typewriter (QWERTY keyboard) with dead keys for acute, circumflex, diaeresis and grave accents. The text of the Domesday Book of 1086, relating for example, to the manor of Molland in Devon (see adjacent picture), is highly abbreviated as indicated by numerous tildes. Medieval European charters written in Latin are largely made up of such abbreviated words with suspension marks and other abbreviations only uncommon words were given in full. This saved on the expense of the scribe's labor and the cost of vellum and ink. Such a mark could denote the omission of one letter or several letters. Thus, the commonly used words Anno Domini were frequently abbreviated to A o Dñi, with an elevated terminal with a suspension mark placed over the "n". The tilde was originally written over an omitted letter or several letters as a scribal abbreviation, or "mark of suspension" and "mark of contraction", shown as a straight line when used with capitals. 2.4.3.1 Unicode and Shift JIS encoding of wave dash.
