'mental-centered' originates from the English word 'mental,' which comes from the Latin word 'mentalis,' meaning 'of the mind,' combined with 'centered,' from the Old French 'centrer,' meaning 'to place at the center.'

'mental' changed from the Latin word 'mentalis' and eventually became the modern English word 'mental.' 'Centered' evolved from the Old French 'centrer' to the modern English 'centered.'

Initially, 'mental' meant 'of the mind,' and 'centered' meant 'placed at the center.' The combined term 'mental-centered' evolved to mean 'focused on mental processes.'