xbism=
preverbal. forward motion
Xbism guusga t'mg̱awsu. My head fell forward.
Xbism 'oksga waap. the house fell forward.
Xbism t'uusu t'mg̱aws Kayla. I pushed Kayla's head forward.

Related entries: Stem with modifying proclitic xbismsgüü  bend over | xbism gyoo  turn upside down | xbism ḵ'ax  upside down