प्रक्षालन (Hindi) comes from Sanskrit प्रक्षालन, from Sanskrit क्षालन, from Sanskrit क्षल्, from Sanskrit क्षर्, from Proto-Indo-Aryan gẓʰar-, from Proto-Indo-European dʰgʷʰéreti — to flow, to melt.
प्रक्षालन (Hindi): washing, cleaning