Winter over, over winter, or overwinter

      I can never keep it straight.  Is the proper term "winter over" or "over winter".  So I finally decided to look it up as to be correct on the blog, and found I was wrong on both counts!
      The Free Online Dictionary defines overwinter (one word) as:
             

1. To remain alive through the winter: sheep that overwintered on the steppe.

2. To pass or spend the winter: We usually overwinter in the Bahamas.

 

     So, it is one word, overwinter.  Now I have at least seven old posts that contain "winter over" that need to be corrected.  Who said garden blogging isn't work?