The story
- Proto-Indo-European · derived from*swépnos“sleep, slumber”
- Latin · derived fromsomnus“sleep”
- Late Latin · derived fromsomnolentia
- Middle French · borrowed fromsomnolence
- English todaysomnolence
Borrowed from Middle French somnolence, from Late Latin somnolentia, derived from Latin somnus (“sleep”), from Proto-Indo-European *swépnos (“sleep, slumber”).
Words from the same roots
Latinsomnus all →
parasomniasomn-somnambulantsomnambulationsomnambulismsomnambulizesomnifacientsomniloquacioussomniloquoussomnipathysomnivolent
Proto-Indo-European*swépnos all →
sweven
Etymology from Wiktionary, CC BY-SA 4.0.