Added 9 October 2026
proficiency
/pɹəˈfɪʃənsi/ noun
Latin root: prōficiēns Wiktionary
noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about proficiency at Wordnik → Where our words come from →
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Ability, skill, competence.
to attain (or to reach) proficiency
Origin
From proficient or its etymon, Latin prōficiēns (present participle of prōficiō), + -ency.
From Wiktionary, via Kaikki.org (CC BY-SA)