Aye, Jimmy, my Cumming/Comyn ancestors get their name from the Norman love of puns -- the "first" Cumming, Robert de Comines, came from the village of Comines on the Belgian/French border -- hence, Cummin, then later Comyn and Cumming.

The Gunns supposedly get their name from a Norseman named "Gunnar".

Cheers,

T.