v. & n. (US smolder)
v.intr. 1 burn slowly with smoke but without a flame; slowly burn internally or invisibly. 2 (of emotions etc.) exist in a suppressed or concealed state. 3 (of a person) show silent or suppressed anger, hatred, etc.
n. a smouldering or slow-burning fire.
[ ME, rel. to LG smöln, MDu. smölen ]