Where does “hypno-” come from?

hypno- (English) comes 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.

hypno- (English): sleep; hypnosis

Definitions

  1. sleep; hypnosis

Ancestry of “hypno-”, step by step

StepLanguageWordMeaning
1Ancient GreekὝπνοςHypnos, the Greek mythological god of sleep
2Proto-Hellenichúpnos
3Proto-Indo-Europeansupnóssleep; death
4Proto-Indo-Europeanswóp-r̥ ~ swép-n̥s
5Proto-Indo-Europeanswep-to sleep

Words derived from “hypno-

Every word from Proto-Indo-European swep-