moelle (Middle French) comes from Old French moele, from Middle Dutch mōlen, from Old Dutch mulin, from Latin molīna, from Latin mola, from Proto-Indo-European melh₂-, from Proto-Indo-European mel-, from Proto-Indo-European mey- — to strengthen; to bind; to change, exchange.
Ancestry of “moelle”, step by step
moelle traces back through 3 separate lines of ancestry.