tironum
tironum is a Latin form of tiro, meaning “recruit, beginner; (Tiro) Cicero's freedman and secretary”. It is the genitive plural masculine noun.
Found 27 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Civili 3.28: … bat; simul de deditione eorum agebat et incolumitatem deditis pollicebatur. Harum altera navis CCXX e legione tironum sustulerat, altera ex veterana paulo minus CC. Hic cognosci licuit, quantum esset hominibus praesidii in anim …
All forms of tiro (declension table)
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.