Dominus

Dominus, the Latin word which we commonly render by 'lord,' but which more properly signifies the master of a house, and his eldest son, as opposed to slave (servus). The term is applied by Christians to God and to Jesus as himself God. The Scottish 'dominie,' in the sense of school-master, is of course taken from it, as is the same term in America, where in some places it is the title of a minister of the Dutch Reformed Church, and in others is applied to Protestant clergymen generally. Don (q.v.) also is a derivative.