dobby

/D AA1 B IY0/
noun
  1. 1

    A device in some looms that allows the weaving of small geometric patterns.

  2. 2

    The patterns so woven, or the fabric containing the patterns.

  3. 3

    An evil or mischievous fairy or ghost sometimes said to haunt a building or household.

  4. 4

    A dotard.

Source: https://en.wiktionary.org/wiki/dobby