The word Curteoned is misspelled against Curtained, which is past tense of "Curtain"
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Word contains consecutive vowels 'AI' in between alphabets curt & ned is misspelled as 'EO'
Wrong Spelling:  curt-eo-ned 
Correct Spelling:  curt-ai-ned 
Check more misspelled words of Curtained to spell it correct.