Origin of digraph
Examples from the Web for digraph
Digraph, dī′graf, n. two letters expressing but one sound, as ph in digraph.
A digraph may either be a combination of two consonants or of two vowels or of a vowel and a consonant.Plain English|Marian Wharton
Two letters forming a diphthong or digraph are not to be separated.
The digraph th is represented in Old English texts by and , no consistent distinction being made between them.Anglo-Saxon Grammar and Exercise Book|C. Alphonso Smith
A consonant or digraph between two sounded vowels usually joins the following vowel, rea-son, no-ti-fy, mo-ther.
1788, in linguistics, from Greek di- "twice" (see di- (1)) + -graph "something written," from Greek graphe "writing," from graphein "to write, express by written characters," earlier "to draw, represent by lines drawn" (see -graphy). In mathematics, from 1955, a contraction of directed graph.