Gr. Church. [ad. eccl. Gr. λυχνικόν time of lamplighting, f. λύχνος lamp.] An office that accompanies the lighting of lamps, being the introductory part of vespers.
1850. Neale, East. Ch., Introd. I. 897, note. The Order of Philotheus directs the Priest to begin the lychnics at the verse In wisdom hast Thou made them all.