The Spanish word 'medición' (meaning 'measurement') comes from combining the verb 'medir' ('to measure') with the suffix '-ción', which forms nouns that describe actions or processes. The verb 'medir' itself comes from the Latin verb 'metiri', which also meant 'to measure'. The suffix '-ción' is commonly used in Spanish to transform verbs into nouns that represent the action or result of the verb.

Some related and simpler Spanish words include the verb 'medir' (to measure), which is more commonly encountered than 'medición'. You might also see related words like 'medida' (measure, measurement) or 'medidor' (meter, measuring device). All these words share the same root from Latin 'metiri' and relate to the concept of measuring.

English speakers might recognize the connection to words like 'measure', 'measurement', and 'metric', which all ultimately derive from the same Latin root 'metiri'. While the Spanish word maintained a closer resemblance to the original Latin form with 'med-', English received these words through Old French, which led to the 'meas-' form we use today. The word 'meter' (as in the measuring device or unit of measurement) is another related English word that shares this ancient connection to measuring.