Where does “hypnic” come from?

hypnic (English) comes from English hypno-, 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.

hypnic (English): That induces sleep; Any sleep-inducing drug

Definitions

  1. That induces sleep; Any sleep-inducing drug

Ancestry of “hypnic”, step by step

StepLanguageWordMeaning
1Englishhypno-sleep; hypnosis
2Ancient GreekὝπνοςHypnos, the Greek mythological god of sleep
3Proto-Hellenichúpnos—
4Proto-Indo-Europeansupnóssleep; death
5Proto-Indo-Europeanswóp-r̥ ~ swép-n̥s—
6Proto-Indo-Europeanswep-to sleep
Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swóp-r̥ ~ swép-n̥s →Every word from Proto-Indo-European supnós →