namcixu fu'ivla

For mo'e x4 x in x1 there exist mo'e x5 y in x2 such that x me'au x3 y; for mo'e x6 y in x2 there exist mo'e x7 x in x1 such that x me'au x3 y.

Cf. me'au, mo'e. Somewhat supercedes rolsixu, in that rolsixu is namcixu for x4=x6=li ro, x5=x7=li su'o.