What is the Saint of Saint Kevin Church?

Saint Kevin of Glendalough had his cultusconfirmed in 1903 in Rome.

When the Church confirms the public cultus of a saint, it means that the Church is formally acknowledging the holiness of this person, and is saying that it is acceptable to venerate this person. Confirmation of a public cult is one of the first steps toward canonization. It is a slightly different process than that of the modern formal beatification, but the person is referred to as Blessed.

In the case of Kevin, he had been acclaimed as a saint unofficially for ome approved his cultus they were basically agreeing with the ancient opinion that he was, indeed, a saint.