Tavtologized or Tautologized: How To spell?

The word Tavtologized is misspelled against Tautologized, which is past tense of "Tautologize"

Word contains consecutive vowels 'AU' in between alphabets t & tologized is misspelled as 'AV'
Wrong Spelling: t-av-tologized
Correct Spelling: t-au-tologized
Find more incorrect spellings of Tautologized to spell right way.