It is not a word from Spanish, but from Latin where it means "prudence, practical knowledge, foresight". Although it is not entirely a mistake because there is an asteroid named Prudentia by its discoverer Maximilian Franz Wolf.
It is equivalent in Spanish to Prudence. It is a woman's name and also the name of one of the cardinal virtues in Latin. Name of an asteroid 474 .
Prudentia- This is the asteroid discovered by the astronomer. F . Wolf on February 13, 1901-