'field-focused' originates from the combination of 'field,' meaning a particular branch of study or sphere of activity, and 'focused,' meaning concentrated or directed attention.

'Field' and 'focused' have been used separately in English since the Middle Ages, but their combination into 'field-focused' is a modern construct.

Initially, 'field' referred to an open land area, but in this context, it evolved to mean a specific area of study or work.