passu
passu is a Latin form of patior, meaning “suffer, endure; allow”.
It can also be a form of passus, “step, pace; (mille passuum) a mile”. It is the ablative singular masculine noun or supine dative singular neuter.
Found 36 times in the Latin texts on Socratos.
Where it is used
Ovid, Amores 3.1.11: Venit et ingenti violenta Tragoedia passu:
All forms of patior (conjugation 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.