I. ˈek-ˌspərt, ik-ˈ adjective
Etymology: Middle English, from Anglo-French & Latin; Anglo-French, from Latin expertus, from past participle of experiri
Date: 14th century
1. obsolete : experienced
2. : having, involving, or displaying special skill or knowledge derived from training or experience
Synonyms: see proficient
• ex·pert·ly adverb
• ex·pert·ness noun
II. ˈek-ˌspərt noun
Etymology: Middle French, from expert, adjective
Date: 1535
: one with the special skill or knowledge representing mastery of a particular subject
III. ˈek-ˌspərt intransitive verb
Date: circa 1889
: to serve as an expert