Plonsman or Plainsman: How To spell?

The word Plonsman is misspelled against Plainsman, a noun meaning "One who lives in the plains."

Word contains consecutive vowels 'AI' in between alphabets pl & nsman is misspelled as 'O'
Wrong Spelling:  pl-o-nsman 
Correct Spelling:  pl-ai-nsman 
Find more incorrect spellings of Plainsman to spell right way.

You might be interested to know

Proclomer or Proclaimer?

Roned or Rained?

Reporer or Repairer?