The Spanish word 'mulada' comes from combining the Latin word 'mula' (meaning 'female mule') with the Spanish collective suffix '-ada'. This suffix is commonly used in Spanish to form words that refer to a group or collection of things. Therefore, 'mulada' literally means 'a herd of mules'.

A simpler related Spanish word is 'mula' (mule), which is very commonly used. The relationship is straightforward - a 'mulada' is simply a group of 'mulas'. This follows a common pattern in Spanish where adding '-ada' to an animal name creates a word for a group of those animals, similar to how 'vaca' (cow) becomes 'vacada' (herd of cows).

The English word 'mule' is related to 'mulada', as both come from the Latin 'mula'. While English doesn't have an exact equivalent using the same word formation pattern, we might use phrases like 'herd of mules' or 'group of mules' to express the same concept as 'mulada'.