> Isn't there also muckle and mickle ? Large and small. So you're not all that far from 'Great Sow' ...

except that the muck bit can't be both! it would be either something big (muckle) or something piggy (muck)

been thinking about possible mis-spellings down the years. foil could also be from "faol" (wolf), "fal" (hedge, wall, fold, circle)

Cheers
Andy