fontibus
fontibus is a Latin form of fons, meaning “spring, fountain; source, origin”. It is the ablative plural feminine noun.
Found 103 times in the Latin texts on Socratos.
Where it is used
Cicero, Pro M. Caelio 6: ut ad me revertar, ab his fontibus profluxi ad hominum famam, et meus hic forensis labor vitaeque ratio demanavit ad existimationem hominum paul …
Lucan, Civil War 2.403: Fontibus hic vastis immensos concipit amnes,
All forms of fons (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.