dotybau lujvo

d₁=b₁ is the German used by b₂ to express/communicate b₃ (si'o/du'u, not quote).

Cf. dotco, bangu, bandu'e'u.

jbovlaste

In notes:

bandu'e'u: x₁ is the language with ISO 639-3 code “deu” (German).
baurgusuve: x₁ is the language with ISO 639-3 code “gsw” (Swiss German).