Where does “ectosymbiose” come from?
ectosymbiose (French) comes from French symbiose, from Latin symbiosis, from Ancient Greek σῠμβῐ́ωσῐς, from Ancient Greek συμβιόω, from Ancient Greek σῠν-, from Ancient Greek σύν, from Proto-Hellenic *ksún.
ectosymbiose (French): ectosymbiosis
Ancestry of “ectosymbiose”, step by step