'lager' originates from German, specifically the word 'Lagerbier', where 'Lager' meant 'storage' and 'Bier' meant 'beer'.

'Lagerbier' transformed into the English word 'lager', and eventually became the modern English word 'lager'.

Initially, it meant 'storage beer', but over time it evolved into its current meaning of 'a type of beer fermented at low temperatures'.