Pestiferous in British English ADJECTIVE  informaltroublesome; irritating2. breeding, carrying, or spreading infectious disease3.  corrupting; pernicious pestiferously (pesˈtiferously) ADVERBpestiferousness (pesˈtiferousness) Latin pestifer, from pestis contagious disease, pest + ferre to bring Pestiferous 2022 https://www.linkedin.com/pulse/pestiferous-2022-randy-bilesky/?published=t