Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English
dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes,
out of personal admiration for this particular dictionary.
FETH'ERED, pp. 1. Covered with fethers; enriched. 2. a. Clothed or covered with fethers. A fowl or bird is a fethered animal Rise from the ground like feathered Mercury. 3. Fitted or furnished with fethers; as a fethered arrow. 4. Smoothed, like down or fethers. 5. Covered with things growing from the substance; as land fethered with trees.
fethered appears in definitions for these words: Fethered