Hello !
 
I am new to learning the Old Norse language but have studied Old English, German, Dutch, and some Old Middle English sporadically.
 
My question is this ... Is there a definable point when the 'sk' or 'sc' shifted to have the sound of 'sh'?  For example: 'scip' in OE is pronounced 'SHip' in ME. Yet, The Old Saxon and Old Norse still pronounce the forms with the hard K.  Would this mutation have occurred in England as the various tribes conversed with differing dialects? Or could it have happened before the migration? I would assume the former, as the mutation is not heavily prevalent on the continent.
 
Any input is welcomed !!!
 
Richard Smith