Definify.com

Webster 1913 Edition

adv.

In a near relation in place, time, degree, etc.; within a little; almost.

[Obs.]

A cube and a sphere . . .

nighly

of the same bigness.

Locke.

adv.

Nearly; within a little.

A cube and a sphere nighly of the same bigness. [Not used.]

nighly ‎(comparative more nighly, superlative most nighly)