English is not derived from latin, Latin derived languages are called Romance Languages Like French, Italian, Spanish and Portugese.
English is probably derived from Old Norse, but around the year 1300 or so the language changed drastically, so if you see Beowolf, it is meaningless to a modern english speaker and even Canterberry Tales is very hard for a modern english speaker to comprhend.
However German and Yiddish are VERY similiar, like Spanish and Italian or Spanish and Portugese (These languages are very similar and speakers of each can mostly understand each other) A german speaker would not understand yiddish 100R%, but it would be significant