In most Siddurim (Nusach Ashkenaz and Sefard) the hymn that starts with the words "An'im Zemirot" is denoted in the Siddur as "Shir Hakavod" - sometimes translated in English in the Siddur (such as Birnbaum) as "Hymn of Glory".
I surmise that because the words in the hymn contain many metaphoric praises of G-d, it got this name, but, I'm uncertain if that's the reason. How, when, and why did it get this name? Is this called something else (other than "Anim Zemirot") by any other group ?