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Roots= None
Prefix= None
Suffix= Ment (act of, state of, result) 


Word Forms:
Noun= Vehemence 
Verb= None
Adjective= Non-vehement, Over-vehement, Un-vehement
Adverb= Vehemently, Non- vehemently, Over- vehemently,

Un-vehemently


Sentences: 
1. As he became aware he was a suspect, his denials became increasingly vehement. 

2. 
The scientist was vehement in his opposition to using his discovery as a weapon.

3. The veterans have been particularly vehement about the hypocrisy of the successive British governments.
Bibliography
Picture 1: 
http://zindy-zone.dk/images/drawings/coal/2009/no_more.jpg
Picture 2: http://www.ezeedictionary.com/imagedict/v/vehement.jpg\
Picture 3: http://www.janeteresa.com/wp-content/uploads/2011/09/psycho_l.jpg
Other stuff: http://dictionary.reference.com
Sentences from: http://sentence.yourdictionary.com/vehement, and http://wiki.answers.com/Q/What_is_a_sentence_for_the_word_Vehement