Galicism or Gallicism: How To spell?
The word Galicism is misspelled against Gallicism, a noun meaning "A mode of speech peculiar to the French; a French idiom; also, in general, a French mode or custom."
Gallicism has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings ga & icism which should not be misspelled with single 'L'
Wrong Spelling:  ga-l-icism  Correct Spelling:  ga-ll-icism 
Find more wrongly spelled words of Gallicism to spell it well.