Crossword clues for the word: EOHIPPUS The word EOHIPPUS has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for EOHIPPUS Showing 1 to 4 of 4 results Clue(s) Ancestor of the horse. Ancestor of the modern horse Dog-sized creature thought to be the horse's earliest ancestor European piece about cool old horse