'decline-focused' originates from the English words 'decline' and 'focus,' where 'decline' meant 'a decrease or reduction' and 'focus' meant 'to concentrate attention or effort.'

'decline' changed from the Old French word 'decliner' and eventually became the modern English word 'decline.' 'Focus' originated from the Latin word 'focus,' meaning 'hearth' or 'fireplace,' and evolved into its current meaning of 'center of activity or interest.'

Initially, 'decline' meant 'to bend down' or 'to slope,' but over time it evolved into its current meaning of 'a decrease or reduction.' 'Focus' originally referred to a 'hearth' but now means 'center of attention.'