'detail-oriented' originates from the English word 'detail' combined with 'oriented,' where 'detail' meant 'a small part of something' and 'oriented' meant 'aligned or directed towards.'

'detail' changed from the Old French word 'détail' and eventually became the modern English word 'detail.' 'Oriented' comes from the Latin word 'orientare,' meaning 'to arrange or align.'

Initially, 'detail' meant 'a small part of something,' and 'oriented' meant 'aligned or directed towards.' Over time, the combination evolved to describe someone who is meticulous and thorough.