Complex sentence: In Māori mythology, the word "aitu" refers to sickness, calamity, or demons; the related word "aituā" means misfortune, accident, disaster-the-ā suffix gives the sense "infested with aitu".
Split into simpler sentences: In Māori mythology, the word "aitu" refers to sickness, calamity, or demons; the related word "aituā" means misfortune, accident, disaster. The-ā suffix of "aituā" imparts the sense "infested with aitu".