6. (Arith. & Alg.) The product of a number or quantity multiplied by
itself; thus, 64 is the square of 8, for 8 × 8 = 64; the square of a +
b is a2 + 2ab + b2.
7. Exact proportion; justness of workmanship and conduct; regularity;
rule. [Obs.]
They of Galatia [were] much more out of square.
Hooker.