DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   
   ** Italian
   
   *** Pronunciation
   [it-pr]
   
   *** Adjective
   [it-adj]
   
    1. [it]  compulsory , mandatory , binding
   ** Latin
   
   *** Participle
   [la]
   
    1. [la]
   ** Portuguese
   
   *** Adjective
   [pt-adj]
   
    1. cogent  [forcefully persuasive]