What is "votum"

In ancient Roman religion, a votum, plural vota, is a vow or promise made to a deity. The word comes from the past participle of the Latin verb voveo, vovere, "vow, promise." As the result of this verbal action, a votum is also that which fulfills a vow, that is, the thing promised, such as offerings, a statue, or even a temple building. The votum is thus an aspect of the contractual nature of Roman religion, a bargaining expressed by do ut des, "I give that you might give."