Hygrodayk or Hygrodeik: How To spell?

The word Hygrodayk is misspelled against Hygrodeik, a noun meaning "A form of hygrometer having wet and dry bulb thermometers, with an adjustable index showing directly the percentage of moisture in the air, etc."

Word contains consecutive vowels 'EI' in between alphabets hygrod & k is misspelled as 'AY'
Wrong Spelling:  hygrod-ay-k 
Correct Spelling:  hygrod-ei-k 
Find more incorrect spellings of Hygrodeik to spell right way.