YES

(VAR x y)
(RULES
  k(a(),a()) -> a()
  h(x) -> a()
  f(g(x),y) -> a()
)

(COMMENT
Termination is shown by KBO with weight

  w0 = 1
  w(f) = 0
  w(g) = 1
  w(a) = 1
  w(h) = 1
  w(k) = 0

and precedence:

  g > k > f > h > a
)