digraph的词源

英文词源

digraph (n.)

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.

中文词源

digraph：双字母

di-, 二。graph, 写，字母，图像。

该词的英语词源请访问趣词词源英文版：digraph 词源，digraph 含义。