jilt

The word 'jilt' emerged in English during the late 17th century, originating as a noun from the generic use of the name 'Jillet'. This name, a diminutive of 'Gill' (itself from 'Juliana'), was used colloquially to refer to a flirtatious or flighty young woman, much like 'jack' was used for a common man. The verb form, meaning to reject or cast off a lover capriciously, developed directly from this noun, encapsulating the stereotypical behavior attributed to such a character. This evolution from a specific personal name to a general verb for romantic rejection is a classic example of antonomasia, where a proper noun becomes a common word describing a characteristic action.

The word 'jilt' is a simplex word. It does not break down into meaningful, reusable morphemes within modern English spelling. Its origin is likely from the proper name 'Jillet', a diminutive of 'Gill' (a common form of 'Juliana'), used generically to mean a flirtatious or capricious woman.