This was accomplished by the utterance of a pule hoo-noa, a tabu-lifting prayer.
The priesthood, properly so called (Kahuna maoli, Kahuna pule), was hereditary.
"cry in a thin, weak voice," 1530s, from French piauler (16c.) "to cheep, chirp," echoic (cf. Italian pigolare "to cheep as a chicken"). Related: Puled; puling.