Where does “praxe” come from?

praxe (Czech) comes from German Praxis, from Latin praxis, from Ancient Greek πρᾶξις, from Ancient Greek πρᾱ́σσω, from Proto-Indo-European per(h₂)-.

praxe (Czech): practice; practicum

Definitions

Step	Language	Word	Meaning
1	German	Praxis	practice, experience
2	Latin	praxis	practice, method, practical experience
3	Ancient Greek	πρᾶξις	deed, act, action, activity; business dealing;...
4	Ancient Greek	πρᾱ́σσω	I do, practice; to do
5	Proto-Indo-European	per(h₂)-	—