x1 is equal/congruent/as much as x2 in property/quality/aspect x3 (ka), and each of x1 and (necessarily) x2 actually has/attains property (vel sim.) x3 according to standard x4.
In English, there are contexts in which saying "each as old as the other" implies that all of the things referenced are old, and equally so. This word approximately translates this connotation, depending on context. See also: "trajije", "simsaje", "jibnije".