from The Century Dictionary and Cyclopedia
- Holding the judgment in check.
- n. One who suspends judgment.
Sorry, no etymologies found.
For what it's worth, it's "ephectic" in my Methuen Australia revised edition 1982, so that one probably isn't the author's fault.
As you can see from the abstract noun employed in the second sentence, it should be ephectic a fine word, I must say, deserving of better citations than the anodyne ones provided by the OED: 1693 Urquhart, The Schools of the Pyrronian..
Sceptick, and Ephectick Sects"; 1883 Saintsbury, "Montaigne's attitude was ephectic".