One of the mysteries of the English language finally explained.
Relating to, of the nature of, or resembling a feather or feathers; (in later use) specifically designating (part of) a feather in which the barbs form a coherent vane (contrasted with downy or plumulaceous).
Early 19th century; earliest use found in James Francis Stephens (1792–1852), entomologist. From scientific Latin pennaceus + -ous.
In this article we explore how to impress employers with a spot-on CV.