The story
- Proto-Indo-European*swep-
- Proto-Indo-European*swépnos
- Proto-Italic*swepnos
- Latinsomnus
- Englishsomn-
- Englishsomno-
- Proto-Indo-European*bʰil-
- Proto-Indo-European*bʰil-o-s
- Ancient Greekφῐ́λος (phĭ́los)
- Ancient Greekφῐλῐ́ᾱ (phĭlĭ́ā)
- English todaysomnophilia
Etymology from Wiktionary, CC BY-SA 4.0.