'methodically-preserved' originates from the combination of 'methodically' and 'preserved'. 'Methodically' comes from the Greek word 'methodikos', meaning 'systematic', and 'preserved' comes from the Latin word 'praeservare', meaning 'to keep safe'.

'methodically' evolved from the Greek 'methodikos' through Latin 'methodicus', and 'preserved' evolved from Latin 'praeservare' through Old French 'preserver', eventually becoming the modern English word 'preserve'.

Initially, 'methodically' meant 'in a systematic way', and 'preserved' meant 'kept safe'. The combined term 'methodically-preserved' retains these meanings in modern usage.