'acroceraunian' originates from Greek, specifically the word 'Akrokeraunia,' where 'akro-' meant 'high' and 'Keraunia' referred to the 'thunderous' mountains.

'Akrokeraunia' transformed into the Latin word 'Acroceraunia,' and eventually became the modern English word 'acroceraunian.'

Initially, it referred specifically to the 'thunderous mountains,' but over time it evolved into its current meaning of 'relating to the Acroceraunian mountains.'