Tertia \t(e)-rtia, ter-tia\ as a girl's name is of Latin origin, and the meaning of Tertia is "third". Unusual number name (see Prima and Secunda). Octavia, which means "eighth", is more popular.
Tertia has 3 variant forms: Tercia, Tersia and Tersha.
Baby names that sound like Tertia are Teresia, Darcia, Tricia, Terresia and Trisia.
View a list of the 2 names that reference Tertia.
Tertia is not a popular first name for women and an equally uncommon surname or last name for both men and women. (1990 U.S. Census)