The word Terrieniak is misspelled against Terrienniak, a noun meaning "The arctic fox."
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Terrienniak has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings terrie & iak which should not be misspelled with single 'N'
Wrong Spelling:  terrie-n-iak 
Correct Spelling:  terrie-nn-iak 
Find more wrongly spelled words of Terrienniak to spell it well.