DEFATIGATION

\dɪfˌatɪɡˈe͡ɪʃən], \dɪfˌatɪɡˈe‍ɪʃən], \d_ɪ_f_ˌa_t_ɪ_ɡ_ˈeɪ_ʃ_ə_n]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.