The Collaborative International Dictionary
                    irradicate
                    
                        
                
                                                                    irradicate \ir*rad"i*cate\ ([i^]r*r[a^]d"[i^]*k[=a]t), v. t. To root deeply. [R.]
Wiktionary
                    irradicate
                    
                        
                
                                                                    vb. to root deeply