The word 'weather-related' is a modern English compound adjective. Its first element, 'weather', descends from the Old English 'weder', which referred broadly to atmospheric conditions and is related to terms for wind and storm across Germanic languages. The second element, 'related', originates from the Latin verb 'referre', meaning to carry back or report, which evolved in English to signify a connection or association. Combined, the term literally means "connected to the weather," a logical and transparent formation used to describe phenomena, events, or conditions that are influenced by or pertain to the state of the atmosphere.

Structure: weather (noun) + related (adjective) 'weather' is from Old English 'weder', of Germanic origin, meaning air, sky, storm, or breeze. 'related' is from Latin 'relatus', the past participle of 'referre' (to bring back, report), with the suffix '-ed' forming an adjective meaning connected or associated.