Definition of finger stocks in English:

finger stocks

noun

historical
  • 1A kind of pillory in which the offender is secured by the fingers.

  • 2A device formerly used as a school punishment for fidgetting, nail-biting, etc., consisting of two small wooden plates with fingerholes into which the fingers are inserted with the hands behind the wearer's back, the plates then being tied together.

Origin

Late 17th century; earliest use found in Robert Plot (bap. 1640, d. 1696), naturalist and antiquary.