frontstall

Origin:
late ME shamfron < AF, OF champfrein, perh. for *chafrein (with -m- perh. from chamfrein chamfer, though the senses are unrelated), n. deriv. of chafre(s)ner lit., to put a bridle on < VL *cap(um) head (for caput; see chief ) + *-frenāre, v. deriv. of L frēnum bridle