Day that someone's name appears in the Santoral. The santoral is a list of the names of the saints that appears day after day in the calendars. Formerly people were given the name that appeared on the santoral according to the date of birth. Date of Feast of a Saint .
It looks like a query for a reverse dictionary from someone looking up the word onomastic, but it actually came here because they put it as if it could be a synonym, and on top of that for a burrada like 10060;honomastico. See santoral .