or smoulder intransitive verb (smoldered or smouldered; smoldering or smouldering)
Etymology: Middle English smolderen to smother, from smolder smoke, smudge; akin to Middle Dutch smōlen to smolder
Date: 1529
1. to burn sluggishly, without flame, and often with much smoke, to be consumed by smoldering, to exist in a state of suppressed activity , to show suppressed anger, hate, or jealousy