Dictionary Definition:
Vayha (nt.) & Vayhā (f.) [grd. formation fr. vah; cp. Sk. vahya (nt.)] a vehicle, portable bed, litter Vin iv.339 (enumd under yāna together with ratha sakaṭa sandamānikā sivikā & pāṭankī); J vi.500 (f.), with sivikā & ratha.