Home Dee Dee Word of the Day – Sept. 19 – Hamartia Dee Dee Word of the Day – Sept. 19 – Hamartia By Staff mB - September 19, 2011 1015 Noun: Hamartia (hah-mahr-TEE-uh) Definition: Tragic flaw Sample sentence: Greed was the hamartia that ultimately brought down the protagonist.