certissimum

certissimum is a Latin form of certus, meaning “certain, sure; fixed”. It is the nominative singular neuter superlative adjective.

Found 34 times in the Latin texts on Socratos.

Where it is used

Cicero, Pro S. Roscio Amerino 63: … ; multum valet communio sanguinis; reclamitat istius modi suspicionibus ipsa natura; portentum atque monstrum certissimum est esse aliquem humana specie et figura qui tantum immanitate bestias vicerit ut, propter quos hanc suavissi …

All forms of certus (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.