the.com/bachelorette party

means A celebratory gathering held for a woman shortly before her wedding, usually organized by friends as a send-off into married life.

from Built from 'bachelorette,' a feminine coinage from 'bachelor' (originally a young knight or someone who hadn't yet attained full guild/academic rank, later narrowed to 'unmarried man'). Adding '-ette' created a female counterpart, and the party itself emerged in the 20th century as a direct answer to the long-established 'bachelor party,' giving brides-to-be their own ritual of pre-wedding revelry rather than leaving the send-off tradition entirely to grooms.