plixau lujvo

x1=p2 is useful/good for x2=p1 by the standard of being usable for purpose p3.

x3 is "usable". See alse selplika'e. Made from pilno + xamgu.

In notes:

ctixau
x1 is edible to x2
narplixau
x1 is useless to agent x2 by the standard of purpose x3
palcau
x1 (activity/event) is profitless / unprofitable to x2
plixaudai
x1 is an utility(something useful).
tolplixau
x1 is worse than useless to agent x2 by the standard of purpose x3
xakyxau
x1 is efficient in aspect x2 (ka) producing results x3
conka
x1 is functional / usable for function x2