o'evla fu'ivla

x1 is a generic/elliptical-referent/unspecified-referent word of type x2 (ka/selma'o) in language x3.

The name ".o'evla" is chosen because many of these cmavo in Lojban are of the form -o'e. See zo'e, do'e, co'e, xo'e. For example, "zo xo'e .o'evla lo ka cmavo ma'oi pa".