itku'ilybau lujvo

x₁ is Ithkuil (language), used by x₂ to communicate x₃ (du'u/si'o)

See itku'ile, bangu

lensisku

In notes:

djankixadas: John Quijada
iskuuil: Ithkuil
itku'ile: x₁ pertains to Ithkuil/Ilaksh/Elartkʰa language in aspect x₂
lesrunbau: x₁ is a philosophical conlang used by x₂ to communicate x₃.