Hay

It's better to make hay while the sun shines.

~ Xander Berkeley

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So I looked up the etymology of the word "bale" and it seems to come from the Germanic for "ball."  (pause)  You'd think I could have figured that out on my own.

In my defense the first hay bales I would have seen were probably square.  And there aren't very many square balls.  Unless you're a quaderback.