Diathermanauty or Diathermaneity: How To spell?

The word Diathermanauty is misspelled against Diathermaneity, a noun meaning "The property of transmitting radiant heat; the quality of being diathermous."

Word contains consecutive vowels 'EI' in between alphabets diatherman & ty is misspelled as 'AU'
Wrong Spelling:  diatherman-au-ty 
Correct Spelling:  diatherman-ei-ty 
Check more misspelled words of Diathermaneity to spell it correct.