cōgnitiō, ōnis [cōgnōscō], f., a legal investigation, judicial hearing; cōgnitiōnem īnstituere, to hold a hearing.
cōgnōmen, inis [con + (g)nōmen], n., a name added to the individual and clan names of a person; a surname, either as a title of honor, as Āfricānus, Māgnus, Torquātus, or as a nickname, as Cicerō. Cōgnōmina served to distinguish different families of the same gens.
cōgnōminō, āre, āvī, ātus [cōgnōmen], to surname, call.
cōgnōscō, see [nōscō].
cōgō, see [agō].
cohors, ortis, f., cohort, company (the tenth part of a legion). See [legiō].
Collātia, ae, f., a Sabine town near Rome.
Collātīnus, ī, m., L. Tarquinius, the husband of Lucretia, and one of the first two consuls, 509 B.C.
collis, is, m., a hill.
collum, ī, n., neck.