quarum
quarum is a Latin form of qui, meaning “who, which, that; (interrog.) which? what?; (after si, ne) any”. It is the genitive plural feminine pronoun.
It can also be a form of quis, “who? what?; (after si, ne) anyone”.
Found 575 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.1.1: Gallia est omnis divisa in partes tres, quarum unam incolunt Belgae, aliam Aquitani, tertiam qui ipsorum lingua Celtae, nostra Galli appellantur.
Plautus, Stichus 1.1.4: de nóstris factis nóscimus, quarúm viri hinc ápsunt,
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.