Gamadion or Gammadion: How To spell?

The word Gamadion is misspelled against Gammadion, a noun meaning "A cross formed of four capital gammas, formerly used as a mysterious ornament on ecclesiastical vestments, etc. See Fylfot."

Gammadion has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings ga & adion which should not be misspelled with single 'M'
Wrong Spelling:  ga-m-adion 
Correct Spelling:  ga-mm-adion 
Find more incorrect spellings of Gammadion to spell right way.

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