portarum
portarum is a Latin form of porta, meaning “gate, city gate; door, entrance”. It is the genitive plural feminine noun.
Found 63 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 7.28.3: parsque ibi, cum angusto exitu portarum se ipsi premerent, a militibus, pars iam egressa portis ab equitibus est interfecta;
All forms of porta (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.