'inflexibly-constructed' originates from the combination of 'inflexible' and 'constructed'. 'Inflexible' comes from Latin 'inflexibilis', where 'in-' meant 'not' and 'flexibilis' meant 'flexible'. 'Constructed' comes from Latin 'constructus', the past participle of 'construere', where 'con-' meant 'together' and 'struere' meant 'to build'.

'Inflexible' changed from the Latin word 'inflexibilis' and eventually became the modern English word 'inflexible'. 'Constructed' evolved from the Latin 'constructus' through Old French 'construire' and Middle English 'constructen'.

Initially, 'inflexible' meant 'not capable of being bent', and 'constructed' meant 'built'. Over time, 'inflexibly-constructed' evolved to mean 'built in a rigid manner'.