/mun"tn/ , n.
1. Also called sash bar . a bar for holding the edges of window panes within a sash. See diag. under double-hung .
2. (formerly) a vertical bar in a window sash.
3. a stile within the frame of a door or the like.
[ 1300-50; earlier mountan, montan, ME mountaun, mountain montant, n. use of prp. of monter to MOUNT 1 ; cf. D munting ]