Compare the word alleys and ponies how are they alike how are they different

While both have to very different meanings, both have a definition of meaning something small (alley - small passage, pony - small horse, pour, or amount of money).  Both are 6 letters, but when made plural, are spelling differently (alleys - just add s, ponies - drop the y, add ies).  Both are Latin in origin, changing letter to French.  But alley is late middle English, with pony being from the mid 17th century.

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