PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Munana
Munana,(nt.) [fr.munāti,almost equal to mona] fathoming,recognising,knowing; a C.word to explain “muni,” used by Dhpāla at VvA.114 (mahā-isibhūtaṁ ...mahanten’eva ñāṇena munanato paricchindanato mahā muniṁ),& 231 (anavasesassa ñeyyassa munanato muni).(Page 538)