rufsu -ruf- gismu

x₁ is rough/coarse/uneven/[grainy/scabrous/rugged] in texture/regularity.

Fine-textured (= tolrufsu). See also xutla, tengu, vitci.

jbovlaste

In notes:

tengu: x₁ (property-ka) is a texture of x₂.
vitci: x₁ is irregular/occasional/intermittent in property/action/aspect x₂.
xutla: x₁ is smooth/even/[soft/silky] in texture/regularity.
rufsfe: x₁ is rough surface of object x₂
rufta'u: t₁=r₁ is coarse clothing/sackcloth.
mapra: x₁ is a quantity of fluff of composition/structure/characterization/substance x₂; x₁ is fluffy/airy/soft/fuzzy in texture