kut ler poi lujvo

x₁ is the empty character string

May be understood as 'me'o lo'o'. See also kunti, lerpoi, kutpoi, kutysetmima, kutyuenzi, kutydza, zai'o.

jbovlaste

In notes:

kutpoi: x₁ is the empty array/sequence
kutydza: x₁ is the null value/argument
kutygunma: x₁ is the empty mass/aggregate
kutysetmima: x₁ is the empty set
kutyuenzi: x₁ is the empty utterance/text