Note 989 — ROMAN PEOPLE (continued 9)
Reading edition
It is curious that the word sacerdos did not find its way into the Christian vocabulary. Apparently it had its chance; for Tertullian uses it in several ways, e.g., "summus sacerdos" for a bishop (de Bapt. 17; "disciplina sacerdotalis," de Monog. 7. 12; and for other examples see Harnack, Entstehung und Entwickelung der Kirchenverfassung und des Kirchenrechts in den zwei ersten Jahrhunderten, 1910, p. 85). But the words finally adopted for the grades of the priesthood were Greek: bishop, priest, and deacon. Nevertheless, the general word for the priesthood, as distinguished from the laity, is Latin (ordo); hence "ordination" and holy "orders." It is not of religious origin, but taken from the language of municipal life, ordo et plebs being contrasted just as they were contrasted in municipia as senate (decuriones) and all non-official persons. See Harnack, op. cit. p. 82.