Dermatology is the branch of medicine dealing with the skin and its diseases, a unique specialty with both medical and surgical aspects. A dermatologist takes care of diseases, in the widest sense, and some cosmetic problems of the skin, scalp, hair, and nails. Coined in English 1819, the word dermatology originated in the form of the words dermologie (in French, 1764) and, a little later, dermatologia (in Latin, 1777). The term derives from the Greek "dermatos" (dermatos), genitive of "derma" (derma), "skin" (from "derw" _ dero, "to flay") + "-logy, "the study of", a suffix derived from "logos" (logos), amongst others meaning "speech, oration, discourse, quote, study, calculation, reason", in turn from "legw" _ lego, "to say", "to speak". Readily visible alterations of the skin surface have been recognized since the dawn of history, with some being treated, and some not.
Contributions by Philiphughesmd, Jfdwolff, and RJ1001.