'leave-focused' originates from Modern English, specifically the compound of the noun 'leave' and the adjective 'focused', formed in contemporary usage to describe emphasis on leave or time off.

'leave' comes from Old English 'lēaf'/'lǣf' meaning 'permission to be absent; remainder', and 'focused' derives from Latin-rooted English 'focus' via Late Latin/Modern English meaning 'center of attention'; the modern compound 'leave-focused' was created by combining these elements in modern English.

Initially the components referred separately to 'permission to be absent' ('leave') and 'directing attention' ('focused'); over time the compound evolved to mean 'prioritizing leave or time-off policies' in organizational contexts.