Where does “expletiveness” come from?

expletiveness (English) comes from English expletive, from Late Latin expletivus, from Latin explētus, from Latin expleō, from Latin pleō, from Proto-Italic plēō, from Proto-Indo-European pleh₁- — to fill.

expletiveness (English): The quality of being expletive

Definitions

  1. The quality of being expletive

Ancestry of “expletiveness”, step by step

expletiveness traces back through two separate lines of ancestry.

via English expletive

StepLanguageWordMeaning
1EnglishexpletiveServing to fill up, merely for effect, otherwise...
2Late Latinexpletivusserving to fill out
3Latinexplētusfilled up, completed
4Latinexpleōto fill up, occupy completely
5LatinpleōCombining form used to form prefixed verbs with the approximate meaning "to fill"
6Proto-Italicplēōto fill
7Proto-Indo-Europeanpleh₁-to fill

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 pleh₁-Every word from Proto-Italic plēōEvery word from Latin pleō