from The Century Dictionary.
- In such a manner as not to be discerned or discovered or seen.
Sorry, no etymologies found.
Whence is it that some men are so strangely blasted in their parts and preferment, but from some hidden sin, that rots and destroys all: whence is it that many large estates do undiscernedly shrivel away and come to nothing, but perhaps from the guilt of some secret extortion, perjury, or the like, that lies fretting and eating out the very bowels of them.
Sermons Preached Upon Several Occasions. Vol. V. 1634-1716 1823