Akaku 🛐 is a word that is said after prayers when praying to Kurapika Kurta. However you can say it whenever as
long as it's for Kurapika Kurta in a respectful
way. It originated from Kurapika Kurta's
character song called "Hi Ni Moeru Hitomi." Akaku 🛐 is a very important and sacred word for Kurtism/Kurtaism (the Kurapika religion).