The etymology of this hapax remains unexplained, and its definition is contextual. The term appears to be used with reference to an architectural, perhaps mainly decorative, feature.
(
c.1195; MS: s.xiii4/4
)
Icest paleis aveit en sei entur, une entiere parei fait a piliers e a arches, e a vousurs e a wandiches; cloistre resemblout environ cum a gent de religiun
690
wandiche (c.1195)