བསྣར་བ
stretch, SA rkyong ba, extend in length, lengthen, pull out, have in its train, drag after [JV]
[f p snar ba] lengthen, stretch, pull out, draw or drag after, trail [IW]
to extend in length, to lengthen, to pull out, to draw or drag after, to trail; pf. of snar ba; ft. of snar ba [RY]