The Spanish word 'hachazo' (meaning 'axe blow') combines two elements: the noun 'hacha' (meaning 'axe') and the suffix '-azo'. The word 'hacha' comes from the Frankish word 'happia', which meant "woodcutter's axe". When combined with the Spanish suffix '-azo', which can indicate either an augmentative form or a blow/strike made with something, it creates 'hachazo' - specifically meaning a strike or blow made with an axe.

The simpler and more common Spanish word 'hacha' (axe) is directly related to 'hachazo', being its root word. Spanish students might also recognize the productive suffix '-azo' from other words like 'puñetazo' (punch) or 'portazo' (slam of a door), which follow the same pattern of describing a forceful blow or strike made with the root object.

While English 'hatchet' might look similar to Spanish 'hacha', they actually have different etymological origins - 'hatchet' comes from Old French 'hachette'. However, both ultimately trace back to similar Germanic roots related to tools for chopping wood.