Where does “somniferousness” come from?

somniferousness (English) comes from English somniferous, from Latin somnifer, from Latin somnus, from Proto-Italic swepnos, from Proto-Indo-European swépnos, from Proto-Indo-European swopnos, from Proto-Indo-European swep- — to sleep.

somniferousness (English): The property of being somniferous

Definitions

  1. The property of being somniferous

Ancestry of “somniferousness”, step by step

somniferousness traces back through two separate lines of ancestry.

via English somniferous

StepLanguageWordMeaning
1Englishsomniferouscausing or inducing sleep, normally with harmful...
2Latinsomnifersomniferous
3Latinsomnussleep; drowsiness, slumber sloth, idleness; death
4Proto-Italicswepnos
5Proto-Indo-Europeanswépnossleep, slumber
6Proto-Indo-Europeanswopnosdream
7Proto-Indo-Europeanswep-to sleep

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European swep-Every word from Proto-Indo-European swopnosEvery word from Proto-Indo-European swépnos
somniferousness — Etymology, Origin & Word History | Etymology Explorer