The Collaborative International Dictionary
                    Endemically
                    
                        
                
                                                                    Endemically \En*dem"ic*al*ly\, adv. In an endemic manner.
Wiktionary
                    endemically
                    
                        
                
                                                                    adv. In an endemic manner
Usage examples of "endemically".
Fever is a disease prevailing endemically in the West Indies and certain sections of what was formerly known as the Spanish Main.