a. superl. Obs. or dial. [f. BACK a.; late formation on type of hindermost, innermost: see -MOST.] By-form of BACKMOST.
1669. Churchw. Acc., in Archæol., XXXV. 449 (D.). In the gallery at Hampton in the backermost seat.
1699. in Phil. Trans., XXI. 287. Some of the backermost part of which [house] is an ancient Roman building.
