A ragout is a highly seasoned meat and vegetable stew, and comes from the French ragoût, which appears to be a general word for stew.
Ragoût comes from the Middle French ragoûter (to awaken the appetite), which comes from the Old French re- (back), à (to) and goût (taste), from the Latin gustum (taste), from gustare (to taste, take a little of) from the Proto-Indo-Etymology *gus-tu-, a form of the root *geus- (to taste, choose), which is the root of the English word choose, and the German word kosten (to taste of) [source].
You can also add Polish “kosztować czegoś” = “to taste something”.