EFFECTUOUS

\ɪfˈɛkt͡ʃuːəs], \ɪfˈɛkt‍ʃuːəs], \ɪ_f_ˈɛ_k_tʃ_uː_ə_s]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.
 
1919 - The Winston Simplified Dictionary
By William Dodge Lewis, Edgar Arthur Singer