Vocative and locative
The vocative case is used for talking to people. Vocatives and imperatives are often found together; they are morphologically similar, since each is the bare stem form. AG 340- “"Desilite," inquit, "milites, nisi vultis aquilam hostibus prodere."” Caesar, BG 4.25
- “Vale, puella.” Catullus 8.12
- “Quid est, Catilina?” Cicero, Catil. 1.13
- “Mulier, quid tibi cum Caelio?” Cicero, Cael. 33