Seven virtues
The "Catechism of the Catholic Church" defines virtue as "a habitual and firm disposition to do the good." Traditionally, the seven Christian virtues or heavenly virtues combine the four classical cardinal virtues of prudence, justice, temperance and courage (or fortitude) with the three theological virtues of faith, hope and charity. These were adopted by the Church Fathers as the seven virtues.
Virtus
Originally "virtus" was used to describe specifically martial courage, but it eventually grew to be used to describe a range of Roman virtues. It was often divided into different qualities including "prudentia" (prudence), "iustitia" (justice), "temperantia" (temperance, self-control), and "fortitudo" (courage). This division of virtue as a whole into cardinal virtues is today classified as virtue ethics, as described by Plato's "Republic" and Aristotle's "Nicomachean Ethics". It implies a link between "virtus" and the Greek concept of "arete".