ri'u FAhA2 cmavo

location tense relation/direction; rightwards/to the right of ...

On affix form:

rinju
x1 is restrained/held [back]/constrained/kept by restraint x2 against x3 (event).

In notes:

pritu
x1 is to the right/right-hand side of x2 which faces/in-frame-of-reference x3.
ju'au
semi-mathematical binary operator: named number base operator/interpreter
ri'udbo
x1 is rightist/conservative ideology of x2; x2 is a rightist