The Collaborative International Dictionary
                    Disquantity
                    
                        
                
                                                                    Disquantity \Dis*quan"ti*ty\, v. t.
   To diminish the quantity of; to lessen. [Obs.] 
--Shak.
Wiktionary
                    disquantity
                    
                        
                
                                                                    vb. (context obsolete English) to diminish, lessen
Usage examples of "disquantity".
The shame itself doth speakFor instant remedy: be then desiredBy her, that else will take the thing she begs,A little to disquantity your train.