modifier
`name
You can use the keyword access character to access an OmniMark keyword that has been hidden by a user-defined name.
For instance, the following program overrides the + character to make it perform concatenation. It then uses the backquote character to access the original + operator.
define string infix-function value string a + value string b as return a || b process output "cat" + " mouse" output "d" % 2 `+ 4