Alternative Name Origin
By Richard Moulding
An alternative to the name’s origin that doesn’t appear in the list:
It may be a derivitive of the old English word ‘Malden’ or similar. This is a hill with a cross on top, which is a familiar sight across the British Isles. There’s even a Surry town called Malden.
When family names were being settled upon the two most common sources were profession and home location. My guess for the name’s origin is for one or more families from an area near a cross-topped hill or involved with the making of goods from moulds, such as casting.
One other thought is for a connection with windmills and the associated professions, this gave rise to a number of similar names derived from the French (Moulin) and Dutch (Molen) words for windmill.
Oh, just one more: the old Welsh word for baldness was Moelyn, so we may all be descended from someone who was conspicious for his shiny dome!