I came across a particularly error-prone Wikipedia entry just now, and was doing some cleanup on it. I was having a hard time finding the correct spelling for one word:

According to the various Byzantine calendrical systems…

After a minute of trying to find the correct spelling, I realized that I was overlooking the obvious:

According to the various Byzantine calendar systems…

There’s no need for a word meaning “of or pertaining to calendars” here.

The moral of the story? Sometimes saying something in big words makes you sound foolish.