Latin to English Translation

One of my cousins has the only example of our family crest. At the bottom of it is the phrase: Enilida Simplicitate (or Enitida Simplicitate, the old English font is hard to read).

I have taken this to a friend of mine who could not provided any more insight than Google translate. Simplicitate translates to simplicity, but I cannot find any translator that recognizes the first word.

Your help is appreciated.
Alex V.