寡人

Etymology
explains this term as 寡德之人 (guǎdé zhī rén "person of meagre virtue").

Pronoun

 * 1)  I; we; "lonesome one" similar to the royal we; reserved for used by monarchs to their subordinates
 * 2)  I first-person pronoun used by the wife of a feudal prince
 * 1)  I first-person pronoun used by the wife of a feudal prince
 * 1)  I first-person pronoun used by the wife of a feudal prince

Noun

 * 1) lonely person