The Collaborative International Dictionary
                    Gutturalize
                    
                        
                
                                                                    Gutturalize \Gut"tur*al*ize\, v. t. To speak gutturally; to give a guttural sound to.
Wiktionary
                    gutturalize
                    
                        
                
                                                                    vb. To pronounce in a guttural manner
Usage examples of "gutturalize".
He remembered the captain’s advice and gutturalized his French, allowing him to be accepted as an unremarkable stranger passing through town.