We don't have synonyms for faires yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are fires, fairs and faired.
(n) :
(Early Modern) Obsolete spelling of fair. [Something which is fair (in various senses of the adjective).]
(adj) :
(Early Modern) Obsolete spelling of fair. [(original sense, archaic or literary) Beautiful, of a pleasing appearance, with a pure and fresh quality.]
(n) :
(Early Modern) Obsolete spelling of fair. [Something which is fair (in various senses of the adjective).]
(adj) :
(Early Modern) Obsolete spelling of fair. [(original sense, archaic or literary) Beautiful, of a pleasing appearance, with a pure and fresh quality.]