 The development illustrates a textbook case of grammaticalization in which an autonomous form, the noun meaning 'mind', while still in free lexical use in e.g.Italian "venire in mente" 'come to mind', becomes a productive suffix for forming adverbs in Romance such as Italian ', Spanish ' 'clearly', with both its source and its meaning opaque in that usage other than as adverb formant.In general, the verbal system in the Romance languages changed less from Classical Latin than did the nominal system.