A fun look at the German verb "treten" and its family. We'll learn the origins and loads of useful related nouns and prefix verbs.
This root is not 100% certain (in a a sense that etymologists feel like they don’t have enough evidence to call it a a certain “thing”), but the core idea of it would be:
walking, making steps
And it’s the origin of English to tread, trap and trip.
sich die Beine vertReten – please, fix