maximarum
maximarum is a Latin form of magnus, meaning “great, large; important”. It is the genitive plural feminine adjective.
It can also be a form of multus, “much, many”.
Found 49 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Civili 3.47: … aximum bellum confecisse, meminerant ad Alesiam magnam se inopiam perpessos, multo etiam maiorem ad Avaricum, maximarum gentium victores discessisse. Non illi hordeum eum daretur, non legumina recusabant; pecus vero cuius rei sum …
All forms of magnus (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.