The word 'clearly-structured' is a compound adjective formed by combining 'clearly' and 'structured'. 'Clearly' originates from the Old English 'clǣre', meaning 'bright' or 'clear', and 'structured' comes from the Latin 'structura', meaning 'a fitting together, building'.

'Clearly' evolved from Middle English 'cler', and 'structured' from Middle English 'structuren'.

Initially, 'clearly' meant 'bright' or 'shining', but over time it evolved to mean 'easily understood'. 'Structured' has largely retained its original meaning of 'arranged in a definite pattern'.