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.
The Saddle can be used in the Aether to ride Phygs, Flying Cows and Moas (after being tamed). Those can then be used as transportation, as they provide a nice ride across the Aether while floating, much like how an Aerbunny is controlled.