An Etymological Dictionary of Astronomy and Astrophysics

1. The state or quality of being equal.
   

2. Math.: A → statement of two → mathematical objects being equal. Like → equations, equalities are written as two mathematical objects connected by the → equality sign.

Etymology (EN): M.E. from L. aequalitat-, stem of aequalitats, → equal

• -ity.

Etymology (PE): Hamugi noun of hamug, → equal.