I. noun see: apt Date: 1709 a highly skilled or well-trained individual ; expert , II. adjective Date: circa 1691 thoroughly proficient ; expert , see: proficient ~ly adverb ~ness noun
ADEPT
Meaning of ADEPT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012