goblin
Concise Oxford English Dictionary © 2008 Oxford University Press:
goblin/ˈɡɒblɪn/
▶noun a mischievous, ugly, dwarf-like creature of folklore.
– origin ME: from OFr. gobelin, possibly rel. to Ger. Kobold (see kobold) or to Gk kobalos ‘mischievous goblin’.
'goblin' also found in these Oxford entries:

