ultimae
ultimae is a Latin form of ulter, meaning “(ulterior) farther, beyond; (ultimus) farthest, last, extreme”. It is the genitive singular feminine superlative adjective.
Found 54 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 3.27.2: paucae ultimae nationes anni tempore confisae, quod hiems suberat, id facere neglexerunt.
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.