tertiam
tertiam is a Latin form of tertius, meaning “third”. It is the accusative singular feminine adjective or accusative singular feminine numeral.
Found 135 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.1.1: Gallia est omnis divisa in partes tres, quarum unam incolunt Belgae, aliam Aquitani, tertiam qui ipsorum lingua Celtae, nostra Galli appellantur.
Cicero, In C. Verrem 2.3.78: hordei decumas eiusdem agri Docimus emerat. hic est Docimus ad quem iste deduxerat Tertiam, Isidori mimi filiam, vi abductam ab Rhodio tibicine. huius Tertiae plus etiam quam Pipae, plus quam ceteraru …
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.