Originally this term literally meant "horse doctor" but the meaning has changed so that now it means one who shoes horses.
The origin of the term may go back to the time of William the Conqueror who instructed one Henry de Farrariis to care for his horses.
Other conjecture has it that may have come from the Latin term Faber ferrarius (Faber meaning craftsman and ferrarius meaning metal), together literally means blacksmith.
He/she's called a farrier. He/she also clips horses "toes"
Farrier or blacksmith
call a farrier
The horse's hoof has an infection. Do not ride the horse but call your farrier.
a shoeaveor
to get your horse shod call a farrier if you don't know where a farrier is then check a pony club notice Bord or a notice Bord in a saddlery ask fellow horse people.
Your horse is in danger call a farrier and a vet immediately!
Let your horse's feet grow and call another farrier.
A farrier is a specialist in equine hoof care, including the trimming and balancing of horses' hooves and the placing of shoes on their hooves, if necessary. A farrier combines some blacksmith's skills (fabricating, adapting, and adjusting metal shoes) with some veterinarian's skills (knowledge of the anatomy and physiology of the lower limb) to care for horses' feet.
A hostler or ostler is a groom or stableman, who is employed in a stable to take care of horses. They might be treated for injuries or illnesses by a veterinarian, and the condition of their feet and shoes was handled by a farrier. However, day to day care of the cavalry mount was by the soldier that rode the horse. A knight would be aided by his squire.
The equestrian
Take proper care of it. Call a vet to check your horse. Feed it quality food. Clean his/her stall. Don't spoil it. Call a farrier to check it's feet. Provide clean water. Exercise it. All these things, and others, help make a happy horse.