English word erythrodegenerative comes from English degenerative (Characterized by or causing degeneration.), English erythro-

Detailed word origin of erythrodegenerative

Dictionary entry	Language	Definition
degenerative	English (eng)	Characterized by or causing degeneration.
erythro-	English (eng)	Used to form scientific terms meaning red, or showing a relationship to red blood cells.
erythrodegenerative	English (eng)	Relating to degeneration of the red blood cells.

Words with the same origin as erythrodegenerative