I. adverb Date: 13th century in a clean manner, II. adjective (cleanlier; -est) Date: circa 1500 careful to keep clean ; fastidious , habitually kept clean, cleanliness noun
CLEANLY
Meaning of CLEANLY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012