English word teach comes from Proto-Indo-European *diǵ-, and later Proto-Germanic *taikijaną (To show, point out, teach.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *diǵ- | Proto-Indo-European (ine) | |
| *taikijaną | Proto-Germanic (gem-pro) | To show, point out, teach. |
| tæcan | Old English (ca. 450-1100) (ang) | To show (someone) the way; to direct, guide. To show, point out. To teach. |
| tǣċan | Old English (ca. 450-1100) (ang) | |
| techen | Middle English (1100-1500) (enm) | To teach. |
| teach | English (en) | (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. |