'spiritual' originates from Latin, specifically the word 'spiritualis,' where 'spiritus' meant 'breath' or 'soul.' 'Focus' originates from Latin, specifically the word 'focus,' meaning 'hearth' or 'fireplace.'

'spiritual' changed from the Old French word 'spirituel' and eventually became the modern English word 'spiritual.' 'Focus' remained largely unchanged from Latin to modern English.

Initially, 'spiritual' meant 'pertaining to the spirit or soul,' and 'focus' meant 'hearth.' Over time, 'focus' evolved to mean 'center of activity or interest.'