In my continuing quest to bring you the weird side of the Microsoft Word spell checker, today it suggested I replace a word with "homothetic." But "homothetic" is not recognized by dictionary.com or Merriam-Webster. But they do recognize the word that Word thought was wrong -- "nomothetic."

[Update: Apparently "Two figures are homothetic if they are related by an expansion or geometric contraction," according to MathWorld.]