Tryllage or Treillage: How To spell?

The word Tryllage is misspelled against Treillage, a noun meaning "Latticework for supporting vines, etc.; an espalier; a trellis."

Word contains consecutive vowels 'EI' in between alphabets tr & llage is misspelled as 'Y'
Wrong Spelling:  tr-y-llage 
Correct Spelling:  tr-ei-llage 
Explore spell check of Treillage to spell without errors.