kilma -kilm- experimental gismu

x₁ is skilled at having property x₂ relatively to population x₃.

Similar to certu, but not as strong in meaning, not implying experthood or prowess. Proposed rafsi -kim-.

lensisku

In notes:

ploxa: x₁ is bad, unskilled, inept, incompetent at doing x₂.
za'onu'o: (adverb) still hasn't...; hasn't yet... (interjection) we're not there yet! there's still some more until we reach our goal.