संस्‍कृतशब्‍दकोशः

पूर्वतस्

सामने‚ पूर्व दिशा से या में‚ पहले से

in front, from the east or in the east, from former times

Monier–Williams

पूर्वतस् — {tas} ind. before, in front, towards or in the east Gobh. MBh. Kāv. &c##first, in the first place BhP