Where does “durén” come from?

durén (Galician) comes from Galician duro, from Old Portuguese duro, from Latin durus, from Proto-Indo-European drew-, from Proto-Indo-European dóru, from Proto-Indo-European deru- — firm, solid; wood; be firm, hard, solid.

durén (Galician): callus

Definitions

callus

Ancestry of “durén”, step by step

Step	Language	Word	Meaning
1	Galician	duro	hard; rigid; hard, tough; hard
2	Old Portuguese	duro	—
3	Latin	durus	hard, rough; harsh; hardy, vigorous
4	Proto-Indo-European	drew-	hard, firm, strong, solid; hard, fast; tree
5	Proto-Indo-European	dóru	tree
6	Proto-Indo-European	deru-	firm, solid; wood; be firm, hard, solid

Every word from Proto-Indo-European deru- →Every word from Proto-Indo-European drew- →Every word from Proto-Indo-European dóru →