
English word teach comes from Proto-Indo-European *diǵ-, and later Proto-Germanic *taikijaną (To show, point out, teach.)
*diǵ- (Proto-Indo-European)
*taikijaną (Proto-Germanic)
To show, point out, teach.
tæcan (Old English)
To show (someone) the way; to direct, guide. To show, point out. To teach.
tǣċan (Old English)
techen (Middle English)
To teach.
teach (English)
(intransitive) To pass on knowledge, especially as one's profession; to act as a teacher.. (obsolete, transitive) To show (someone) the way; to guide, conduct; to point, indicate.. (transitive) To cause to learn or understand.. (transitive) To pass on knowledge to.