Fairhwism is an esoteric religious practice introduced to the Kammath by Scham Khotchuhwut (KAM: Kolluhwyt [kɔɬuˈʍyːt]; HWD: Khochuuhwut [kʰɔ˥˧ˈt͡ɕɯː˨˩ʍɯʔ˩˧]).

Khotchuhwut describes Fairhwism as an "eternally old" religion, one that has been practiced in each cyclical emination of the Universe. this cycle, known as Yaa, is yet to be broken, as out of the infinitely many Gods that have came before, all of them have been much too selfish to make it stop.

"Fairhwism" comes from Kammath Fairhwus [fâirʍʏ̂s], a neologism and plural of Fairhwi [fâirʍi], meaning many things: the most common usage is universe, in which it is Neuter, but can mean something when feminine and nothing when masculine.
Fairhwe ne Fairhwar / Fairhwar nar Fairhwe [fâirʍɛ́ nɛ̆ fâirʍâr] / [fâirʍâr nâr fâirʍɛ́] "Nothing into something / Something into nothing" ~ a line in the Fairhwustikan mentioning the cyclic nature of existence. the universe started from nothing and will return to nothing.

About Scham Khotchuhwut; "Scham" is his title, meaning Priest. His name, Kho-tchu-hwut, means "miracle-maker" in Hwdyyt.
the Kammath word Fairhwus is taken directly from Gothic 𐍆𐌰𐌹𐍂𐍈𐌿𐍃 (fairƕus).