serum

serum is a Latin form of serus, meaning “late, too late; (sero) late, too late”. It is the accusative singular neuter adjective.

Found 64 times in the Latin texts on Socratos.

Where it is used

Vergil, Aeneid 6.764: quem tibi longaevo serum Lavinia coniunx

Seneca the Younger, Thyestes 487: Serum est cavendi tempus in mediis malis:

All forms of serus (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.