This function appends one or more lists, destructively modifying all but the last argument. It is otherwise identical to append.
Gamma> a = list (1, 2, 3);
(1 2 3)
Gamma> b = list (4, 5, 6);
(4 5 6)
Gamma> c = list (7, 8, 9);
(7 8 9)
Gamma> nappend (a, b, c);
(1 2 3 4 5 6 7 8 9)
Gamma> a;
(1 2 3 4 5 6 7 8 9)
Gamma> b;
(4 5 6 7 8 9)
Gamma> c;
(7 8 9)
Gamma>