'research-focused' originates from the combination of 'research' and 'focused', where 'research' means 'systematic investigation' and 'focused' means 'concentrated on a particular aim'.

'research' comes from the Old French word 'recercher', meaning 'to seek out', and 'focused' comes from the Latin word 'focus', meaning 'hearth' or 'fireplace'.

Initially, 'research' meant 'to seek out', and 'focused' meant 'hearth', but over time, 'focused' evolved to mean 'concentrated on a particular aim'.