The Spanish word 'presión' (meaning 'pressure') comes from the Latin word 'pressio', which was formed by combining the Latin past participle 'pressus' (meaning 'pressed') with the suffix '-io' (which was used to form nouns indicating an action or process). This combination created a noun that described the action or state of pressing, which evolved into our modern concept of pressure.

Several common Spanish words share this Latin root, including 'prensa' (press, printing press), 'oprimir' (to oppress), 'comprimir' (to compress), and 'expresar' (to express). All these words carry the basic idea of pressing or pushing in different contexts. For example, 'expresar' originally referred to pressing or squeezing out, which evolved to mean expressing thoughts or feelings.

Many English words are related to 'presión' through the same Latin root, including 'pressure', 'press', 'compress', 'express', and 'depression'. All these words maintain some connection to the original meaning of pressing or pushing. For instance, 'depression' literally means 'pressing down', while 'express' originally meant to 'press out'. The English word 'pressure' is particularly close to the Spanish 'presión', both in meaning and form, as they both developed from the same Latin word 'pressio'.