Carmen (verse)
In Ancient Rome, the term "carmen" was generally used to signify a verse; but in its proper sense, it referred to a spell or prayer, form of expiation, execration, etc. Surviving examples include the Carmen Arvale and the Carmen Saliare.
Purposes
Spells and incantations were used for a variety of purposes. If a spell was intended to harm someone, the State could interfere to protect him. For instance, it was not unusual for a farmer whose crops had failed to accuse another farmer of having, by a carmen, lured the crops away. Tibullus, in a poem in which he complains that an old woman has bewitched Marathus, takes the opportunity to recount various feats of witches, such as transferring crops from one field to another. Similarly, Pliny the Elder records in Naturalis Historia (XVIII. 8) that a certain freedman, Furius, by using better implements and better methods than his neighbor, obtained richer crops from a smaller strip of land. A neighbor compelled Furius to go before the tribes and accused him of having bewitched his field. But when the tribes saw his sturdy slaves and his implements of witchcraft—hoes, rakes, and ploughs—they acquitted him.
