Also the only connection between cups and ghots are mystical creatures, Google refuses to translate (coincidence?) ... in czech its Vodník ... in german Wasserman ... in english, i have no idea.
Jozin z Bazin?
I don’t know if it’s 1-1 equivalent, but polish Utopiec was translated to Drowner in Witchers. I am pretty sure the word was made up, just like Witcher itself, for the needs of the translation.