Their language, now called Old English, originated as a group of Anglo-Frisian dialects which were spoken, at least by the settlers, in England and southern and eastern Scotland in the early Middle Ages, displacing the Celtic languages (and, possibly, British Latin) that had previously been dominant.
Polydectes evidently talked to Perseus about [Gorgons]; he probably told him that he would rather have the head of one of them than anything else in the world.