The Commens Dictionary
Quote from ‘Letters to William James’
By mellonization (Gr. μέλλωγ the being about to do, to be, or to suffer) I mean that operation of logic by which what is conceived as having been (which I call conceived as parele’lythose) is conceived as repeated or extended indefinitely into what always will be (or what will some day be, that is, its absence will not always be, which equally involves mellonization, which does not assert anything but is merely a mode of conceiving). The conception of the real is derived by a mellonization of the constraint-side of double-sided consciousness. Therefore to say that it is the world of thought that is real is, when properly understood, to assert emphatically the reality of the public world of the indefinite future as against our past opinions of what it was to be.