Where does “aletargamiento” come from?

aletargamiento (Spanish) comes from Spanish aletargar, from Spanish letargo, from Latin lethargus, from Ancient Greek λήθαργος, from Ancient Greek ἀργός, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥- — together, one.

aletargamiento (Spanish): hibernation state of inactivity during winter

Definitions

hibernation state of inactivity during winter

Ancestry of “aletargamiento”, step by step

Step	Language	Word	Meaning
1	Spanish	aletargar	to make lethargic
2	Spanish	letargo	lethargy, tiredness
3	Latin	lethargus	lethargy, drowsiness
4	Ancient Greek	λήθαργος	forgetful; lethargic; lethargy
5	Ancient Greek	ἀργός	white, bright; swift; not working, idle
6	Ancient Greek	ἀ-	The alpha privativum, used to make words that...
7	Proto-Hellenic	hə-	same; together
8	Proto-Indo-European	sm̥-	one; with, together
9	Proto-Indo-European	sem-	together, one

Every word from Proto-Indo-European sem- →Every word from Ancient Greek ἀ- →Every word from Proto-Indo-European sm̥- →