The Collaborative International Dictionary
                    Decompounded
                    
                        
                
                                                                    Decompound \De`com*pound"\, v. t. [imp. & p. p. Decompounded; p. pr. & vb. n. Decompounding.] [Pref. de- (intens. in sense 1) + compound, v. t.]
- To compound or mix with that is already compound; to compound a second time. 
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To reduce to constituent parts; to decompose. It divides and decompounds objects into . . . parts. 
 --Hazlitt.
Wiktionary
                    decompounded
                    
                        
                
                                                                    vb. (en-past of: decompound)