Linguistic purism in English

Wikipedia:

Linguistic purism in the English language is the belief that words of native origin should be used instead of foreign-derived ones (which are mainly Latinate and Greek). “Native” (inborn) can mean “Anglo-Saxon” (Engelsaxish) or it can be widened to include all Germanic (Theedish) words. In its mild form, it merely means using existing native words instead of foreign-derived ones (such as using begin instead of commence). In its more extreme form, it involves reviving native words that are no longer widely used (such as ettle for intend) and/or coining new words from Germanic roots (such as wordstock for vocabulary). The resulting language is sometimes called Anglish (coined by the author and humorist Paul Jennings), Roots English (referring to the idea that it is a “return to the roots” of English), among other names. The mild form is often advocated as part of Plain English, but the more extreme form has been and continues to be a fringe movement.