custodiis
custodiis is a Latin form of custodia, meaning “guard, custody, protection; prison; guards”. It is the ablative plural feminine noun.
Found 52 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 5.58.1: … na intromissis equitibus omnium finitimarum civitatum quos arcessendos curaverat, tanta diligentia omnes suos custodiis intra castra continuit, ut nulla ratione ea res enuntiari aut ad Treveros perferri posset.
All forms of custodia (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.