Gremlin
WordNet

noun


(1)   (folklore) fairies that are somewhat mischievous
WiktionaryText

Etymology


Possibly from Old English grëmian ("to vex", "to anger"), related to German grämen and Swedish gräma ("to grieve").

Noun



  1. A mythical creature reputed to be mechanically inclined and mischievously inclined to damage or dismantle machinery.
  2. By extension, any mysterious, unknown source of trouble or mischief.
    We rechecked everything, and we suspect gremlins in the database.
 
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