The story
- Ancient Greek · derived fromὕπνος“sleep”
- Medieval Latin · borrowed fromypnalis
- English todayhypnalis
From Medieval Latin ypnalis, ipnalis, from Ancient Greek ὕπνος (húpnos, “sleep”).
Words from the same roots
Ancient Greekὕπνος all →
Hypnoshypnagogichypno-
Etymology from Wiktionary, CC BY-SA 4.0.