Tanage or Tannage: How To spell?
The word Tanage is misspelled against Tannage, a noun meaning "A tanning; the act, operation, or result of tanning."
Tannage has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings ta & age which should not be misspelled with single 'N'
Wrong Spelling:  ta-n-age  Correct Spelling:  ta-nn-age 
Explore spell check of Tannage to spell without errors.