tergo
tergo is a Latin form of tergum, meaning “back”. It is the dative singular neuter noun.
Found 394 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 7.87.2: Restituto proelio ac repulsis hostibus eo quo Labienum miserat contendit; cohortes quattuor ex proximo castello deducit, equitum partem sequi, partem circumire exteriores munitiones et ab tergo hostes adoriri iubet.
All forms of tergum (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.