altum
altum is a Latin form of alo, meaning “nourish, feed, support”.
It can also be a form of altus, “high; deep”. It is the accusative singular masculine adjective or perfect passive participle genitive plural masculine or perfect passive participle genitive plural neuter.
Found 235 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 4.28.3: quae tamen ancoris iactis cum fluctibus complerentur, necessario adversa nocte in altum provectae continentem petierunt.
Seneca the Younger, Oedipus 337b: Altum taurus attollens caput
All forms of alo (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.