PROFICIENCY, PROFICIENT
ADJECTIVES
► SCIENCE skilful, proficient, expert → 1926 Amer. dial.
► SCIENCED skilful, proficient, expert → 1926 Amer. dial.
NOUNS
► CURIOSITY proficiency attained by careful application; skill, cleverness, ingenuity → 1603 obs.
NOUNS – PERSON
► ADEPT a person who is highly skilled or proficient at something → 1674
► ALPHA GEEK the most technically proficient and/or knowledgeable member of a group → 1995 US sl.
► ARTIST a person skilled or proficient at a particular task or occupation; an expert → 1594 obs.
► DAB one skilful at anything; an adept, a proficient person → 1691
► DAB HAND one who is clever at any kind of manual labour; a skilled person; an adept or expert; a proficient → 1828
► DABSTER one skilled at anything; an expert or adept; a clever or versatile person; one who excels greatly; a proficient → 1708
► DEACON a superior or head workman; an adept, a proficient, a master → 1790 Sc.
► MACK a clever, proficient or influential person, usually a man; the best in one’s field → 1960s sl.
► MACK DADDY a clever, proficient or influential man; an expert; the best → 1993 Amer. sl.
Lexicophilia 