Your MEENGANAIRE is probably MUINGANAIR, MUINGANORE, or MOINGANEIR, all townland name variants. Since few 19th century Celtic-Irish could read/write, it didn't make any difference to those making the records.
Visit Irishgenealogy.ie, a new, FREE, online database of surviving church B/M/D records. There are a large number of Murphys in Knocknagoshel parish. Will let you sort out which are for your ancestry.