You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: IN THE DICTIONARY 
Clue: Slower than a gallop, this horse's gait is named for a pilgrimage site in England
canter

Category: WHAT A CARD! 
Clue: Ken Jennings used these briefly displayed items to get ready to play "Jeopardy!"
flashcards

Category: HIPPOS 
Clue: The word hippopotamus comes from 2 Greek words meaning this

river horse