Origin of overline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for overline
There are also some characters with a macron or overline (straight line) above them.
Now take of the icing sugar and fill your paper funnel as if for cake icing, and overline the pencil marks you made on the stone.One Thousand Secrets of Wise and Rich Men Revealed
C. A. Bogardus
The overline never occurs in a partial line, as at paragraph-end.
Some vowels were written with an overline—here shown as a tilde—representing a following nasal (m or n).
There are also a few Greek words in the Index, and a handful of letters with overline or macron, such as .