Melancholia, from Greek: µέλαινα χολή melaina chole "black bile", "blackness of the bile"; compare also: lugubriousness, from Latin lugere, "to mourn"; moroseness, from Latin morosus, "self-will or fastidious habit"; wistfulness, from obsolete English whist; and saturnineness, from Latin Sāturnīnus, "under the influence of the planet Saturn"