FRIARY is a 6 letter word that starts with F.

1. \Fri"ar*y\, a. [From {Friar}, n.]
   Like a friar; pertaining to friars or to a convent. [Obs.]
   --Camden.
   
   

2. \Fri"ar*y\, n. [OF. frerie, frairie, fr. fr[`e]re. See
   {Friar}.]
   1. A monastery; a convent of friars. --Drugdale.
   
   2. The institution or praactices of friars. --Fuller.