West Germanic, the ancestor of Old High German, Old Saxon, Old Frisian, Old Low Franconian and others which in turn gave rise to modern German, Dutch, Flemish, Low German, Frisian, Yiddish and, ultimately, English.

西日耳语古高地日耳语、古撒克逊语、古弗里斯兰语、古低地弗兰语其他语言的祖先，这些语言又产生了现代德语、荷兰语、佛兰芒语、低地德语、弗里斯兰语、意第绪语，最后英语。