'anura' originates from New Latin, specifically from the Greek word 'anourā', where 'an-' meant 'without' and 'oura' meant 'tail'.

'anura' was formed by Latinizing the Greek term 'anourā' into New Latin 'Anura' and was adopted as the scientific name for the order of tailless amphibians in modern taxonomy.

Initially, it meant 'without tail' as a descriptive compound, but over time it evolved into the formal taxonomic name for frogs and toads.