PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Mānassin
Mānassin,(adj.n.) [prob.fr.manassin (*manasvin) under influence of māna.Cp.similar formation mānavant] proud Vin.II,183 (expld by Bdhgh in a popular way as “mana-ssayino māna-nissitā”).The corresponding passage at J.I,88 reads māna-jātikā māna-tthaddhā.(Page 529)