Teach comes from Middle English techen, from Old English tǣċan, from Proto-Germanic taikijaną, from Proto-Indo-European deyḱ-, meaning to show or point out.
teach (English): To show the way; to guide, conduct; to point,...
Definitions
To show the way; to guide, conduct; to point,...
Ancestry of “teach”, step by step
teach traces back through two separate lines of ancestry.