The scan below is the definintion of Grimm's Law from our textbook (Millward, C.M. A Biography of the English Language.  Ft. Worth: Harcourt, 1996. Pg. 63).  It is reproduced here to give the basic theory of Grimm's Law.  A list of specific (but by no means comprehensive) examples follows on other pages.  Click here when you are ready to move on.