Verily this is a triad, name, form, and work. Of these names, that which is called Speech is the Uktha (hymn, supposed to mean also origin), for from it all names arise. It is their Saman (song, supposed to mean also sameness), for it is the same as all names. It is their Brahman (prayer, supposed to mean also support), for it supports all names.
In plain words: The world is made of three things: name, form, and action. For all names, speech is their source, it is the same as them, and it holds them up.