Sharday is a feminine given name of American coinage that first appeared in onomastic records during the mid-1980s, a period characterized by the proliferation of inventive appellations within the Anglo-American naming tradition. Phonologically rendered as /ʃɐrˈdeɪ/, its orthographic composition suggests an etymological affinity to the French term Chardonnay, though no direct viticultural lineage has been established. According to Social Security Administration data, Sharday debuted in 1985 with 100 registrations (rank 699) and peaked in 1986 at 170 instances (rank 646), followed by a gradual decline to 15 occurrences (rank 885) by the turn of the century. This trajectory reflects broader trends in late twentieth-century onomastic innovation, with Sharday’s disyllabic structure and trochaic stress pattern conferring a distinctive, modernist elegance and situating it within a cohort of names valued for both uniqueness and phonetic clarity.