The Spanish word 'fauno' comes directly from the Latin word 'faunus', which referred to Faunus, the Roman god of forests and fields. In Roman mythology, Faunus was often depicted as a half-human, half-goat creature, similar to the Greek god Pan. Over time, the term came to refer to mythological creatures with similar characteristics - the fauns, who were nature spirits or deities associated with untamed wilderness and forest life.

There aren't many common Spanish words that are directly related to 'fauno', as it remains a fairly specific mythological term. However, you might encounter it in literature or art discussions about mythological themes.

The English word 'faun' is directly related to Spanish 'fauno', as both come from the Latin 'faunus'. You might recognize this word from fantasy literature or classical mythology, where fauns appear as woodland creatures with the upper body of a human and the lower body of a goat. A famous example is Mr. Tumnus from C.S. Lewis's 'The Chronicles of Narnia', who is a faun.