An Etymological Dictionary of Astronomy and Astrophysics

Having the power of discerning and judging properly as to what is true or right; possessing discernment, judgment, or discretion (Dictionary.com).

Etymology (EN): From M.E. wis, wys, from O.E. wis (“wise”), cognate with Du. wijs, Ger. weise, Norw. and Swed. vis.

Etymology (PE): Xeradmand, from xerad, → wisdom,

• -mand relatrion and possession suffix.