Ka nifoor was a rite that was known to the Vulcan civilization.

In 2270, T'Prylla noted that her son Radak was only five years old and thus too young for even the most basic ritual of Vulcan maturity which was the ka nifoor. After she was freed from Corona's influence, she asked Spock to administer the rite on her children Radak and T'Raus in order to free them from the entities possession. (TOS novel: Corona)