Webster's 1828 Dictionary
ROMPU, ROMPEE
n.[L. rumpo, to break. ] In heraldry, an ordinary that is broken, or a chevron, a bend or the like, whose upper points are cut off.
Webster's 1913 Dictionary
ROMPU
Rom "pu, a. Etym: [F. rompu, p. p. of rompre to breeak, L. rumpere.See Rupture. ] (Her. )
Defn: Broken, as an ordinary; cut off, or broken at the top, as a chevron, a bend, or the like.
The Wordsmith Dictionary