We don't have synonyms for foldage yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are foliage and faldage.
(n) :
Alternative form of faldage. [(law, Norfolk, Suffolk, obsolete) A privilege of setting up, and moving about, folds for sheep, in any fields within manors, in order to manure them; often reserved to himself by the lord of the manor.]
(n) :
Alternative form of faldage. [(law, Norfolk, Suffolk, obsolete) A privilege of setting up, and moving about, folds for sheep, in any fields within manors, in order to manure them; often reserved to himself by the lord of the manor.]