The Spanish word 'malo' meaning 'bad' or 'evil' comes directly from the Latin word 'malus', which had the same meaning. This is a straightforward inheritance where both the form and meaning have remained remarkably stable over time, with just a minor change from 'malus' to 'malo' as Latin evolved into Spanish.

There are several common Spanish words built from the same root, including: 'malísimo' (very bad), 'maldad' (evil/wickedness), 'malicia' (malice), and 'malestar' (discomfort). All these words share the basic 'mal-' root indicating something negative or bad.

English has borrowed many words that trace back to the same Latin root 'malus', including 'malice', 'malicious', 'malevolent', 'malady', and 'malfunction'. All these words carry negative connotations, with 'mal-' serving as a prefix meaning 'bad' or 'evil'. For example, 'malevolent' literally means 'wishing evil', while a 'malady' is a bad condition or illness.