What does Sinthia mean?
Sinthia \s(i)-nthia, sin-thia\ as a name for girls is of Greek origin, and the meaning of the name Sinthia is "from Mount Kynthos". Sinthia is a variation of Cynthia (Greek). Seldom used as a given name for baby girls.
Sinthia has 37 more alternative forms via Cynthia: Cinda▼, Cindee, Cindi▼, Cindie, Cindy▼, Cinnie, Cinny, Cintia, Cinzia, Cyn, Cynda, Cyndee, Cyndi, Cyndia, Cyndie, Cyndra, Cyndy, Cynnie, Cynth, Cyntia, Cythia, Cytia, Diantha, Kynthia, Kynthija, Sindee, Sindi, Sindia, Sindy, Sindya, Sinnie, Sinny, Synda, Syndee, Syndi, Syndia and Syndy.
Sinthia is an uncommonly occurring given name for females. Sinthia is an uncommon last name too for all people. (2000 U.S. Census)
Below is a charted analysis of the usage of Sinthia and associated names. Cynthia (#491 the previous year), Cindy (#710), Cindi, Cyndi, Cinthia and Cinda are the popular related forms of Sinthia (#unlisted). Usage of this girl name was at its highest during 1950-1959 and has become much lower since, with the versions Cindy, Cynthia, Cindi and Cinda becoming less fashionable. (Top 1000 Baby Names Records, 2014)
Sinthia is alike in pronunciation to Xanthia. Like Sinthia, this name is not frequently used.