Where does “proficientness” come from?

proficientness (English) comes from English proficient, from Latin proficiens, from Latin proficio, from Latin faciō, from Latin -torium, from Latin -tōrius, from Latin -tor, from Proto-Italic -tōr.

proficientness (English): proficiency

Definitions

  1. proficiency

Ancestry of “proficientness”, step by step

proficientness traces back through two separate lines of ancestry.

via English proficient

StepLanguageWordMeaning
1EnglishproficientGood at something; skilled; fluent; practiced,...
2Latinproficiensadvancing etc
3LatinproficioI advance, make progress, make headway; I...
4Latinfaciōto do
5Latin-toriumnominative neuter singular of -tōrius; accusative...
6Latin-tōriusory
7Latin-tor-er
8Proto-Italic-tōrForms agent nouns to verb stems
9Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
10Proto-Indo-European-tor-s

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 -tor-sEvery word from Latin -toriumEvery word from Latin -tor