Uncle sub DaveO has a real word by the tail, first in print in 1741, in the sentence "I loved him for nothing so much as his f------ of money." OED 1971 edition.
Oh, the meaning? The action or habit of estimating as worthless. Beloved of Eton Latin students, for obvious reasons to those who have suffered through Latin.

But why this search for seldom used words? It causes me to flodder, nay, even to grutch and finally to gry.

And someone brought up that justifiably long-discarded author, PG. Any self-respecting editor would have ruddled his back-formation gruntle, a word which already had legitimate meanings.