The Spanish word 'comodísimo' meaning 'very comfortable' comes from combining the Spanish adjective 'cómodo' (comfortable) with the superlative suffix '-ísimo' (meaning 'very' or 'extremely'). The base word 'cómodo' traces back to the Latin 'commodus' meaning 'convenient' or 'suitable', which itself was formed from two Latin elements: the prefix 'con-' meaning 'together' or 'completely', and 'modus' meaning 'measure' or 'manner'. The combination of these elements suggests something that is measured or arranged in a completely suitable way.

Several common Spanish words share this etymology through the Latin root 'modus'. The word 'modo' means 'way' or 'manner', directly reflecting the original Latin meaning. 'Cómodo' itself is very common and means 'comfortable', while 'acomodar' means 'to accommodate' or 'to adjust'. These words all carry the basic idea of measuring, arranging, or fitting things appropriately.

English speakers can recognize this etymology in several familiar words. 'Accommodate' and 'accommodation' share the same Latin roots as 'comodísimo'. The word 'mode' also comes from Latin 'modus', as do 'moderate' and 'modulate'. All these words relate to measuring, adjusting, or finding the right manner or way of doing something. The English word 'commodity' also comes from this family, originally referring to something suitable or convenient before evolving to mean a useful product or good.