Impenous or Impennous: How To spell?

The word Impenous is misspelled against Impennous, an adjective meaning "Having no wings, as some insects."

--> Impennous has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings impe & ous which should not be misspelled with single 'N'
Wrong Spelling:  impe-n-ous 
Correct Spelling:  impe-nn-ous 
Check more misspelled words of Impennous to spell it correct.

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