Root غ س ل(g s l) has 4 unique word forms and appears 4 times in the Quran.

English gloss Wash, Launder, Clean, Ablution, Detergent, Soap, Washbasin

Word Translation Occurrences
تَغۡتَسِلُواْۚ you have bathed, you have bathed 2
غِسۡلِينٖ (the) discharge of wounds, (the) discharge of wounds 2
فَٱغۡسِلُواْ then wash, then wash 2
مُغۡتَسَلُۢ (is a spring of) water to bathe, (is a spring of) water to bathe 2