mule
noun
[ mjuːl ]
• the offspring of a donkey and a horse (strictly, a male donkey and a female horse), typically sterile and used as a beast of burden.
• a hybrid plant or animal, especially a sterile one.
• a kind of spinning machine producing yarn on spindles, invented by Samuel Crompton in 1779.
• a small tractor or locomotive, typically one that is electrically powered.
• a coin with the obverse and reverse of designs not originally intended to be used together.
Origin:
Old English mūl, probably of Germanic origin, from Latin mulus, mula ; reinforced in Middle English by Old French mule .
mule
noun
• a woman's slipper or light shoe without a back.
Origin:
mid 16th century: from French, ‘slipper’.