Where does “sompnolent” come from?

sompnolent (Old French) comes from Latin somnolentus, from Latin somnus, from Proto-Italic swepnos, from Proto-Indo-European swépnos, from Proto-Indo-European swopnos, from Proto-Indo-European swep- — to sleep.

Ancestry of “sompnolent”, step by step

StepLanguageWordMeaning
1Latinsomnolentusheavy with sleep, sleepy, drowsy, dozy, somnolent
2Latinsomnussleep; drowsiness, slumber sloth, idleness; death
3Proto-Italicswepnos—
4Proto-Indo-Europeanswépnossleep, slumber
5Proto-Indo-Europeanswopnosdream
6Proto-Indo-Europeanswep-to sleep

Words derived from “sompnolent”

Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swopnos →Every word from Proto-Indo-European swépnos →