The Spanish word 'palo' meaning 'stick' or 'pole' comes directly from the Latin word 'palus', which meant 'stake' or 'pole'. This is a straightforward evolution where the Latin word simplified its ending from '-us' to '-o' as it developed into Spanish, while maintaining its core meaning of a long, straight piece of wood or similar material.

Several common Spanish words and expressions use 'palo' as their base, such as 'palito' (little stick), 'paleta' (paddle, lollipop), and 'empalado' (impaled). The phrase 'dar palo' is also common, meaning 'to hit' (literally 'to give a stick').

While English 'pole' might look similar to Spanish 'palo', they actually have different etymological roots. However, English has borrowed some words that are related to 'palo', such as 'palisade' (a fence made of wooden stakes), which comes from the same Latin root 'palus'. The word 'pale' as in 'beyond the pale' (meaning outside the boundaries) also comes from this Latin root, as it originally referred to a stake or fence post marking a boundary.