goblin
Goblin (noun) means In traditional folklore, a small, ugly magical creature that lives in dark places and is usually unkind or troublesome, similar to an evil elf or demon.
Etymology
Came into English via Middle English gobelyn, from Old Northern French gobelin (compare Norman goubelin, Walloon gobelin), possibly a blend of Old Dutch *kobeholdo ("goblin") (compare Dutch kabouter, German Kobold) and Late Latin cobalus ("mountain sprite"), from Ancient Greek κόβαλος (kóbalos, "rogue, knave; goblin"). It displaced the native Old English pūca, from Proto-Germanic *pūkô ("a goblin, spook"), which also gave English puck.