Meaning

verb strip the skin off

originFrom Middle English flayen, flaien, fleien, from Old English *flīeġan ("to cause to fly, put to flight, frighten"; found only in compounds: āflīeġan), from Proto-Germanic *flaugijaną (“to let fly, cause to fly”), causative of Proto-Germanic *fleuganą (“to fly”).

Etymology from Wiktionary, CC BY-SA 3.0