The Collaborative International Dictionary
                    ventuse
                    
                        
                
                                                                    Ventouse \Ven"touse\, v. t. & i.
   To cup; to use a cupping glass. [Obs.] [Written also
    ventuse.] 
--Chaucer.
Wiktionary
                    ventuse
                    
                        
                
                                                                    vb. (alternative form of ventouse English)