Is certainly not used by Swift in the sense of careful or discriminating selection, but of overfondness for fantastic conceits. Amorphy (a word which Swift seems to form for himself on the model of Atrophy) is the 'formlessness' and singularity of style upon which the moderns prided themselves. Oscitation (used in the form oscitancy on p. 190, 1. 14) is yawning or dulness. Observe the characteristic sequence of the satire. These three faults are best dealt with by diversion (i. e. ridicule). We expect the next sentence to show that instruction would not touch them. Swift purposely disappoints our expectation: he does not urge the uselessness of instruction, but its superfluity in an age of such wit and learning as the present.