Where does “superproficient” come from?

superproficient (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.

superproficient (English): Extremely proficient

Definitions

  1. Extremely proficient

Ancestry of “superproficient”, step by step

superproficient 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 super

StepLanguageWordMeaning
1EnglishsuperOf excellent quality, superfine; better than...
2Englishsuper-egoAlternative spelling of superego
3GermanÜber-Ichsuperego
4GermanIchego, the Ich; self, me, him, etc
5Middle High GermanichI
6Old High GermanihI
7Proto-West GermanicikI
8Proto-Germanic*ek
9Proto-Indo-Europeanéǵh₂I

Words derived from “superproficient

Every word from Proto-Indo-European -tor-sEvery word from Latin -toriumEvery word from Latin -tor