'manualize' originates from the English word 'manual,' which comes from the Latin word 'manualis,' meaning 'of the hand.' The suffix '-ize' is used to form verbs indicating a process or transformation.

'manualis' transformed into the Old French word 'manuel,' and eventually became the modern English word 'manual.' The verb form 'manualize' was created by adding the suffix '-ize.'

Initially, 'manual' referred to anything done by hand, and 'manualize' evolved to mean converting something into a manual process.