IPA: /ˈfeɪtəli/
KK: /ˈfeɪtəli/
In a way that causes death or leads to disaster.
The accident fatally injured the driver.
Fatally → It is formed from "fatalis" (from Latin, meaning destined to die or deadly) and the adverbial suffix "-ly" (meaning in a manner of). The word "fatally" means in a manner that leads to death or is deadly.
Think of something that is 'deadly' ('fatalis') and how it happens 'in a manner' ('-ly'). This helps you remember that 'fatally' refers to something that leads to death.