Verb
(intransitive, of a light source) To become extinguished.
(intransitive) To dwindle down to nothing.
Source: en.wiktionary.orgMagnus thought of James Herondale, burning up with too much light, too much love, too much, too much- while the boy in the portrait was as lovely as a dying poet, with the fragile beauty of a candle about to gutter out. Cassandra Clare