The compound adjective "work-life" is a modern formation from two fundamental and ancient English nouns. "Work" originates from the Proto-Germanic werkan, carrying the sense of physical or mental effort, which evolved into the Old English concept of a specific task or occupation. "Life" stems from the Proto-Germanic libam, meaning existence or sustenance. The hyphenated pairing "work-life" emerged in the late 20th century within sociological and business discourse to conceptually separate and then relate the two primary spheres of adult experience. It encapsulates the modern societal challenge of balancing professional obligations with personal well-being, family time, and leisure, reflecting a cultural shift towards recognizing their interdependence.

Structure: work (employment) + life (personal existence) - work: From Old English 'weorc', meaning 'something done, deed, action, proceeding, business, military fortification'. In this compound, it functions as a noun denoting paid employment or occupation. - life: From Old English 'līf', meaning 'existence, lifetime, way of life'. In this compound, it functions as a noun denoting personal existence outside of employment.