diacritical

Etymology

From diacritic + -al.

adj

1. Capable of distinguishing or of making a distinction.
2. Of, pertaining to, or serving as a diacritic
   The reduplicated forms and the fineness of the diacritical strokes, render his book troublesome to the reader 1869, Alexander John Ellis, On Early English Pronunciation

noun

1. A diacritic (mark).
   This is often the case when diacriticals are written at the end of the word - the last character ends, but there is still some ink in the original writing order that should have been used up in the course of processing the various t's, i's, and apostrophes in the body of the word. 1999, Lee Seong-whan, Advances In Handwriting Recognition, page 54