According to the etymological data, the word “melancholy" is of Greek origin. Traditionally, the ancient inhabitants of Greece associated the term with something unpleasant and depressive. At that time people thought that the cause of melancholy (Greek,melas "black" andchole"bile") was the presence of too much black bile in a person's body, so this state implied sadness, gloom, and depression.

Nowadays medical experts use the word “depression" instead of “melancholy" while in a routine situation the word tends to describe somber mood of a person.