to be carried away: Pass. of vahati, q.v. and add refs.: Mil.69; Vism.603 (vuyhare)
ppr vuyhamāna:

1. being drawn MN.i.225 (of a calf following its mother’s voice).
2. being carried away (by the current of a river), in danger of drowning Snp.319. pp. vuḷha & vūḷha.