Where does “ipnosi” come from?

ipnosi (Italian) comes from French hypnose, from Ancient Greek Ὕπνος, from Proto-Hellenic húpnos, from Proto-Indo-European supnós, from Proto-Indo-European swóp-r̥ ~ swép-n̥s, from Proto-Indo-European swep- — to sleep.

ipnosi (Italian): hypnosis

Definitions

hypnosis

Ancestry of “ipnosi”, step by step

Step	Language	Word	Meaning
1	French	hypnose	hypnosis
2	Ancient Greek	Ὕπνος	Hypnos, the Greek mythological god of sleep
3	Proto-Hellenic	húpnos	—
4	Proto-Indo-European	supnós	sleep; death
5	Proto-Indo-European	swóp-r̥ ~ swép-n̥s	—
6	Proto-Indo-European	swep-	to sleep

Words derived from “ipnosi”

autoipnosi
ipnositerapia
narcoipnosi

Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swóp-r̥ ~ swép-n̥s →Every word from Proto-Indo-European supnós →