deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE

/ut / उत्

The /upasarga /ut means "up"

tiSThati तिष्ठति "he's standing"
uttiSThati उत्तिष्ठति "he stands up"

patati पतति "flies", "falls"
utpatati उत्पतति "flies up", "takes off", "starts flying"

It is called ud उद् by /pANini, as in sUtra udassthAstambh....