Abernethy
/ˌabəˈnɛθi/ /ˌabəˈniːθi/noun
More fully Abernethy biscuit. A hard biscuit flavoured with caraway seeds.
Origin
Mid 19th century; earliest use found in Polar Star. Probably from the name of John Abernethy, British surgeon, who is said to have developed the biscuit as an aid to digestion.