du'o _BAI cmavo

djuno modal, 1st place (info source) authoritatively; according to ...; known by ...

In notes:

djuno: x₁ knows fact(s) x₂ (du'u) about subject x₃ by epistemology x₄.
enfa: x₁ abstractly pertains to an exponential/root/logarithmic relationship between the elements of x₂ (ordered pair) which are related via concrete relationship x₃.