brilliancy

Definition

A shining quality; brilliance.

Etymology

From brilliant + -ancy; attested earlier than brilliance. Compare French brillance.

Example Sentences

• "[…] to assist greatly in the consumption of the lamp, and to diminish the aqueous precipitations produced on the interior of the lantern glass, which has the effect of reducing more or less the brilliancy of the light."
• "[H]is ideal of grandeur was a splendid façade, diffusing its brilliancy outward too, irradiating hospitality."
• "His brilliancy lay in combining old concepts from far-flung fields into a new idea."