'office-based' originates from the English word 'office,' which comes from the Latin word 'officium,' meaning 'service or duty,' combined with 'based,' derived from the Old French 'bastir,' meaning 'to build.'

'office' evolved from the Latin 'officium' through Old French 'office,' while 'based' transformed from Old French 'bastir' to the modern English 'base.'

Initially, 'office' meant 'service or duty,' but over time it evolved to refer to a place of work, while 'based' retained its meaning of 'foundation or location.'