rusk

 
Pronunciation: /rʌsk/

noun

chiefly British
  • a light, dry biscuit or piece of twice-baked bread, especially one prepared for use as baby food.
  • [mass noun] twice-baked bread used in foods such as sausages, and formerly as rations at sea.

Origin:

late 16th century: from Spanish or Portuguese rosca 'twist, coil, roll of bread', of unknown ultimate origin