The Spanish word 'computacional' (meaning 'computational') comes from combining 'computación' ('computation') with the suffix '-al' (meaning 'relating to'). 'Computación' traces back to the Latin word 'computatio' (meaning 'calculation'), which derives from 'computare' ('to calculate'). 'Computare' itself was formed from two Latin elements: the prefix 'con-' (meaning 'together') and 'putare' (meaning 'to prune' or 'to reckon'). The original sense of putting things together to reckon or calculate has carried through to the modern computational meaning.

Some related Spanish words that might be more familiar to Spanish learners include 'computadora' (computer), 'computar' (to compute), and 'cómputo' (computation). All these words share the same Latin root 'computare' and relate to the concept of calculation or computing.

English speakers can easily relate this word to several similar English words like 'compute', 'computer', 'computation', and 'computational'. These English words share the exact same Latin ancestry through 'computare'. The parallel development of these words in both languages explains their similar forms and related meanings in the field of mathematics and computing.