'fundamentally' originates from Latin, specifically the word 'fundamentalis,' where 'fundamentum' meant 'foundation.' 'Change' originates from Old French, specifically the word 'changier,' where 'cambiare' meant 'to exchange.'

'Fundamentally' changed from the Latin word 'fundamentalis' and 'change' from the Old French word 'changier,' eventually becoming the modern English phrase 'fundamentally changed.'

Initially, 'fundamentally' meant 'pertaining to the foundation,' and 'change' meant 'to exchange or alter.' Over time, the phrase evolved to mean 'altered in a way that affects the core or essential nature of something.'