The Jewish mystics use the name Ayn Sof to describe God the Creator. Literally it means "no thing" but the point is what you have beautifully explained in your essay. Namely, that any word a mortal could use to describe God limits Who He IS to the meaning of the word in the mind of the one who used it.
We shouldn't forget that Almighty God DID use many words to describe Himself in Holy Scripture - though it would be foolish to imagine it was exhaustive. We wouldn't know anything at all about Him had He not. Jesus also gave us insight into the nature of the Father and the eternal Godhead as well as His plans for His creation. So, whatever words we use to describe God can be those words He used and the thoughts those words and names provide us helps enormously to give us a firm enough understanding of Him so that we desire to follow and obey Him once He has opened our eyes and hearts to His reality.