sea-change
UK[ˈsiː ˌtʃeɪndʒ]US[ˈsiː ˌtʃeɪndʒ]
n
A profound or notable transformation.
Morpheme Breakdown
sea
change
sea
change
Etymology
The term is a direct compound of two ancient and common English words, 'sea' and 'change'. Its specific meaning and literary resonance originate from William Shakespeare's play The Tempest (c. 1610), where the spirit Ariel sings of a drowned man undergoing a "sea-change / Into something rich and strange." The literal image is of a transformative process wrought by the powerful, mysterious, and purifying action of the sea, which utterly alters the substance of an object. Over time, this vivid poetic metaphor became lexicalized, losing its literal marine context to signify any profound, fundamental, and often mysterious metamorphosis.
Analysis
Structure: sea + change
sea: Old English, from Proto-Germanic. The large body of salt water. In this compound, it functions metaphorically to imply vastness, depth, or overwhelming force.
change: Old French, from Latin. The act or instance of making or becoming different. In this compound, it functions as the core concept of transformation.
Examples
The invention of the internet brought a sea-change in global communication.
The company's new policy represents a sea-change in its approach to environmental sustainability.
Her research points to a sea-change in our understanding of early human history.