'serenely-constructed' originates from the combination of 'serenely' and 'constructed'. 'Serenely' comes from the Latin word 'serenus', meaning 'clear, calm', and 'constructed' is derived from the Latin 'constructus', the past participle of 'construere', meaning 'to heap together'.

'Serenely' evolved from the Latin 'serenus' through Old French 'serain', and 'constructed' evolved from Latin 'constructus' through Middle English 'constructen'.

Initially, 'serenely' meant 'clear and calm', and 'constructed' meant 'to build'. Together, they convey the idea of something built in a calm manner.