All,
I'm back home after two months of almost continuous travel, so here's my first input:
Tiffield suggests looking in a Latin dictionary. I have one. Here's what I found:
1. The only Latin word that begins with "grab" is "grabatus - A low couch, a camp-bed." Thus, the root is not Latin.
2. The Latin word for "noose" is "laqueus," thus there is no Latin relationship to the word.
My conclusion remains: Someone made this up.
Of course if we get it published in a magazine or book, then we would have coined it and it becomes a word. But I don't care for it as the term because it has no relation to the subject.
If we want to make up a word, let's try "laquetology." But even that is not very good as that could be "the study of nooses."
Cordially,
Russ