aestum
aestum is a Latin form of aestus, meaning “heat; tide, surge; passion, agitation”. It is the accusative singular masculine noun.
Found 29 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 4.23.6: His dimissis et ventum et aestum uno tempore nactus secundum, dato signo et sublatis ancoris, circiter milia passuum VII ab eo loco progressus aperto ac plano litore naves constituit.
All forms of aestus (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.