The Spanish word 'botana' (meaning 'stopper' or 'snack') has an interesting etymology that traces back to the Latin word 'buttis', meaning 'leather bottle' or 'cask'. This evolved into the Spanish word 'bota' (meaning 'wineskin'). The word 'botana' was then formed by adding the Spanish noun suffix '-ana' to 'bota'. The meaning evolved from referring to a stopper for a wineskin to also meaning a snack, likely because these snacks were commonly served alongside wine in taverns.

A simpler related Spanish word is 'bota', which means 'wineskin' - a leather bag used for storing and serving wine. This connection makes sense since a 'botana' was originally a stopper for such a container. Today, 'bota' is also commonly known to Spanish learners as meaning 'boot', though this is actually a separate etymology.

The English word 'butt' meaning 'a large cask or barrel' (as in 'wine butt') is related, coming from the same Latin root 'buttis'. While this sense of 'butt' is somewhat archaic in modern English, it appears in terms like 'buttload' (originally referring to the capacity of a butt barrel). Note that this is completely unrelated to the more common meaning of 'butt' referring to a person's posterior.