The Collaborative International Dictionary
                    Humectate
                    
                        
                
                                                                    Humect \Hu*mect"\, Humectate \Hu*mec"tate\, v. t. [L. humectare,
   humectatum, fr. humectus moist, fr. humere to be moist: cf.
   F. humecter.]
   To moisten; to wet. [Obs.] 
--Howell.
Wiktionary
                    humectate
                    
                        
                
                                                                    vb. (context obsolete English) To moisten.