'auditory' originates from Latin, specifically the word 'auditorius,' where 'audire' meant 'to hear.' 'Focused' comes from Latin 'focus,' meaning 'hearth' or 'center.'

'auditorius' transformed into the Old French word 'auditoire,' and eventually became the modern English word 'auditory.' 'Focus' was adopted directly from Latin into English.

Initially, 'auditory' meant 'pertaining to hearing,' and this meaning has largely remained the same in modern usage. 'Focused' originally referred to a central point, now used to mean 'concentrated on.'