Anchitherium

Anchitherium, a fossil animal with three hoofs, the presumed original of the horse.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Anchi`ses * Anchovy
[wait for the fun]
Anaxag`oras
Anaxar`chus
Anaximander
Anaxim`enes
Ancæus
Ancelot
Ancenis
Ancestor-worship
Anchieta
Anchi`ses
Anchitherium
Anchovy
Anchovy pear
Ancient Mariner
Ancillon, Frederick
Anco`na
Ancre, Marshal
Ancus Marcius
Andalusia
Andamans
Andelys, Les