The Spanish word 'zorro' meaning 'fox' has an interesting etymology that traces back to Portuguese. It comes from the Portuguese word 'zorro' which meant 'lazy person', which in turn derived from the Portuguese verb 'zorrar' meaning 'to drag'. The semantic evolution from 'dragging' to 'fox' likely developed because foxes were seen as crafty animals that would lazily drag themselves around when pretending to be injured - a hunting technique known as 'playing possum' - before suddenly springing into action to catch their prey.

The word 'zorro' is fairly unique in Spanish and doesn't have many common related words, though you might encounter 'zorruno' (fox-like) or 'zorrero' (fox hunter). The feminine form 'zorra' can also mean 'vixen' (female fox) but has developed some negative slang connotations that learners should be aware of.

While there aren't direct English cognates of 'zorro', many English speakers might recognize the word from popular culture, particularly from the fictional character Zorro, the masked vigilante whose name was chosen to reflect the fox-like cunning of the hero. The English word 'fox' comes from different Germanic roots and is not related to 'zorro'.