Treny or Trainy: How To spell?

The word Treny is misspelled against Trainy, an adjective meaning "Belonging to train oil."

Word contains consecutive vowels 'AI' in between alphabets tr & ny is misspelled as 'E'
Wrong Spelling:  tr-e-ny 
Correct Spelling:  tr-ai-ny 
Explore spell check of Trainy to spell without errors.

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