A putto is often called a cherub (plural cherubs) although unlike the Biblical cherub (plural cherubim) in form and symbolism: cherubim have four faces of different species and several pairs of wings, and are sacred, whereas putti are secular and represent a non-religious passion.
(The term stallion for an uncastrated male horse dates from this time; stallion = stalled one.) Stallion is also used to refer to males of other equids, including zebras and donkeys.
A horse at stud is a male horse that has not been gelded yet or castrated and his owner will allow people to use that horse to cover(breed with) one their mares. A fee must always be paid for the use of the stud and the price ranges from $100-$1000000. A stud is more commonly called a stallion(an intact) male horse.