Affixes are both prefixing and suffixing depending on precise usage. Koasati is a polysynthetic language with fairly extensive verbal prefixing and suffixing. In Onondaga the two major morphological processes are prefixing and suffixing. New words are formed through extensive prefixing and suffixing. Of course, not all languages use prefixing or suffixing. It is formed by prefixing "ka-" and suffixing "-an" to the root. The morphology of Keresan is mostly prefixing, although suffixes and reduplication also occur. An asterisk prefixing a term indicates a reconstructed form of the Frankish word. Prefixing with double underscores changes behaviour in classes with regard to name mangling. This functionality is accessed by prefixing the ! character to the predefined string. MPLS works by prefixing packets with an MPLS header, containing one or more labels. Outlines are further differentiated by the index prefixing used, or lack thereof. E.g. by quoting them or by prefixing them by a special character. In most clients, users can enter commands by prefixing them with a '/'. Numbers above a million are constructed by prefixing "lan" with a multiplier.