smolder

burn slowly without flame 
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smolder

[v] - have strong suppressed feelings 2. [v] - burn slowly and without a flame
Found on http://www.webdictionary.co.uk/definition.php?query=smolder

Smolder

• (v. i.) Alt. of Smoulder • (v. t.) Alt. of Smoulder • (n.) Alt. of Smoulder
Found on http://thinkexist.com/dictionary/meaning/smolder/
No exact match found