
From Lacan: In Spite of Everything, by Élisabeth Roudinesco, loc 1257:
Distinct from the witticism – or portmanteau word – that aims to illuminate the many facets of a language, as in Rabelais or Joyce, the neologism can turn into delirious creation if an author resorts to it to rethink the whole of a doctrinal system and, above all, to imprint his name on a discourse from which a new set of concepts can spring ex nihilo. In this respect, ‘neologistic’ excess is an abuse of language that turns thought into a pile of words, into delirium.
