SHREWD'NESS, noun 1. Sly cunning; archness. The neighbors round admire his shrewdness. Swift. 2. Sagaciousness; sagacity; the quality of nice discernment. 3. Mischievousness; vexatiouness. [Not in use.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI