1) Ancient Roman religion 2) Castle in Italy 3) Incense holder of old Rome 
[incense box] In Ancient Roman sacrificial tradition, an acerra (Greek: λιβανωτρίς) was the incense box used in sacrifices. The incense was taken out of the acerra and let fall upon the burning altar; hence, we have the expression de acerra libare. (turibulum) The acerra was also, according to Festus, a small altar, placed before ...[moth] Acerra is a genus of moths of the Noctuidae family. ...