Hectograme or Hectogramme: How To spell?
The word Hectograme is misspelled against Hectogramme, a noun meaning "The same as Hectogram."
Hectogramme has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings hectogra & e which should not be misspelled with single 'M'
Wrong Spelling:  hectogra-m-e  Correct Spelling:  hectogra-mm-e 
Find more incorrect spellings of Hectogramme to spell right way.