The Spanish word 'más' meaning 'more' comes from the Latin word 'magis', also meaning 'more'. The evolution from Latin 'magis' to modern Spanish 'más' went through an intermediate Old Spanish form 'maes'. During this transition, the medial 'g' was lost and the vowels simplified, resulting in the modern monosyllabic form we use today.

'Más' is already one of the most basic and common words in Spanish, being used in countless expressions like 'más o menos' (more or less), 'más que' (more than), and 'jamás' (never, which literally combines 'ya' and 'más' to mean 'already more'). It's one of the first words Spanish students learn!

While English 'more' is not related to Spanish 'más' (English 'more' comes from Germanic roots), there are some English words that share the Latin root 'magis'. These include 'master' and 'magistrate', which both derive from Latin words containing 'magis', conveying the idea of someone who is 'more' powerful or has greater authority. The word 'maximal' also shares distant roots with 'más', as both ultimately relate to concepts of greatness or increase.