In most languages, and in linguistics in general, a combining form is a version of a word or root that can be concatenated (prefixed or suffixed) onto roots or words to make new words. The Hilinqwo equivalent of combining forms are bases, prefixes and suffixes. The term "combining form" can be used to describe them, and particularly to distinguish them from base endings and prefix endings. Aside from that distinction, there is little reason to call them "combining forms" rather than "elements."