The Spanish word 'amenaza' (meaning 'threat') has its roots in Latin. It can be traced back to the Latin word 'mina' which referred to a 'projecting part' or 'threat'. This evolved into the Latin adjective 'minax' meaning 'threatening', which then gave rise to the neuter plural form 'minacia' meaning 'threats'. In early Spanish, this became 'menaza', and finally evolved into the modern Spanish word 'amenaza' with the addition of the 'a-' prefix.

While 'amenaza' itself is a commonly used Spanish word, you might encounter its related verb form 'amenazar' (to threaten) and the adjective 'amenazante' (threatening). The archaic form 'menaza' is no longer used in modern Spanish.

While English doesn't have any direct cognates from the Latin 'minax/minacia' line, we can find some connection in words like 'menace', which comes from Old French 'menace', ultimately from the same Latin root. This parallel can help English speakers remember that 'amenaza' relates to threats or menacing behavior.