Hastella or Haustella: How To spell?

The word Hastella is misspelled against Haustella, which is plural of "Haustellum"

Word contains consecutive vowels 'AU' in between alphabets h & stella is misspelled as 'A' as letter 'U' is phonetically ignore
Wrong Spelling: h-a-stella
Correct Spelling: h-au-stella
Explore spell check of Haustella to spell without errors.