The term "Jakob Grimm" refers to a specific historical figure, not a common English word. Here’s an easy explanation:
Jakob Grimm (noun) - He was a German scholar and storyteller who lived from 1785 to 1863. He is best known for collecting and writing fairy tales, along with his brother Wilhelm Grimm. Together, they are famous for stories like "Cinderella," "Hansel and Gretel," and "Snow White." Jakob Grimm also studied languages and created a theory called "Grimm's Law," which explains how sounds change in related languages.