glow of a firefly
Refers to the light emitted by fireflies, often used in poetic or seasonal contexts.
On a summer night, the glow of fireflies flickered by the riverside.
nearly extinguished fire; embers
Describes a fire that is about to go out, leaving only faint embers. Often used metaphorically for something fading.
The bonfire was dying down to embers like a firefly's glow.
Standard kanji spelling for the reading ほたるび.
Out-dated kanji form; 蛍 is the modern standard.
A compound of 蛍 “firefly” and 火 “fire, light,” with rendaku changing ひ to び.