What is the fear of horses called?

Equinophobia

The fear of horses is called Equinophobia. The word "equus" comes from the Latin word for "horse". People with equinophobia may avoid horses altogether, or to experience severe anxiety when they are around horses.

The other options are:

• Elurophobia: fear of cats
• Cynophobia: fear of dogs
• None of these: There is no phobia specifically for the color purple.