fatal

The word 'fatal' traces its lineage directly to the Latin adjective fatalis, meaning 'of or belonging to fate or destiny'. This derives from fatum, the past participle of fari ('to speak'), reflecting the ancient belief that one's destiny was a decree spoken by the gods. Over time, the sense of an inevitable, divinely ordained outcome narrowed to focus specifically on the most decisive and unavoidable consequence: death. Thus, the literal meaning 'ordained by fate' evolved into the modern abstract senses of 'causing death' or 'leading to disaster', as if such outcomes were pre-determined.

Structure: fat (fate) + al (adjective suffix) 'fat' originates from Latin fatum (that which has been spoken, destiny, fate). 'al' is an adjective-forming suffix from Latin -alis.