The Spanish word 'acetona' (acetone) traces back to Latin through French. It begins with the Latin word 'acer' meaning 'sharp' or 'sour', which developed into 'acetum' meaning 'vinegar' in Latin. The French borrowed this root to create 'acétone', which was then borrowed into Spanish as 'acetona'. This etymology makes sense given that acetone, like vinegar, has a sharp, distinctive chemical smell and was historically derived from the distillation of acetic acid (vinegar).

Some related Spanish words that might be familiar to Spanish learners include 'acético' (acetic), which refers to vinegar-related compounds, and 'ácido' (acid). These words share the same Latin root 'acer' meaning 'sharp' or 'sour', which perfectly describes the nature of these substances.

English speakers can easily remember 'acetona' by connecting it to several similar English words. 'Acetone' is obviously the direct English equivalent. Other related English words include 'acetic' (as in acetic acid, the main component of vinegar), 'acid', and 'acute' (which comes from the same Latin root 'acer' meaning 'sharp'). The connection between these words makes sense when you think about how acids and acetone have sharp, strong properties.