The Spanish word 'muleta' comes from the Spanish word 'mula' (meaning 'mule') combined with the diminutive suffix '-eta'. The Spanish 'mula' itself derives from the Latin word 'mula' meaning 'female mule'. Originally, 'muleta' literally meant 'small mule', but over time it came to primarily mean 'crutch' - likely due to the way a person leans on a crutch for support, similar to how people historically relied on mules as support animals for carrying loads.

The Spanish word 'mula' (mule) is directly related to 'muleta'. While 'mula' refers to the animal itself, 'muleta' took on a metaphorical meaning as a support device. Interestingly, 'muleta' is also used in bullfighting to refer to the red cloth used by the matador, perhaps drawing a connection between the supporting role of both a crutch and the cloth used to guide the bull's movements.

While English 'mule' is related to Spanish 'muleta', they followed different paths from their common Latin ancestor 'mula'. The English word maintained its strict meaning referring to the animal, while the Spanish diminutive form developed the additional meaning of 'crutch'. English speakers might find it helpful to remember that a 'muleta' (crutch) supports people just as a mule supports loads.