I had not thought of this provenance for the term - in all of the Tu conferences that I have attended, the word used was "compositE", which, I assumed, referred to the fact that a number of similar motions were amalgamated into one which combined the worst features of all of them.
(pardon my cynicism - it's a common disease among those who have moved in TU circles for anything over twenty years)

But I can see merit in wseib's approach - and it is certainly more elegant.