The Collaborative International Dictionary
                    Respectuous
                    
                        
                
                                                                    Respectuous \Re*spec"tu*ous\ (r?*sp?k"t?*?s;135), a.
- Respectful; as, a respectuous silence. [Obs.] 
 --Boyle.
- Respectable. [Obs.] 
 --Knolles.
Wiktionary
                    respectuous
                    
                        
                
                                                                    a. 1 (context obsolete English) respectful 2 (context obsolete English) respectable