IPA: /pjuˈtrɪdəti/
KK: /pjuˈtrɪdəti/
The condition of being decayed or rotten, often producing a foul smell.
The putridity of the old food made the kitchen unbearable.
Putridity is formed from "putrid" (from Latin "putridus", meaning rotten) and the suffix "-ity" (meaning the state or condition of). The word "putridity" refers to the state of being rotten or decayed.
Think of something that is 'rotten' ('putrid') and remember that 'putridity' means the state of being rotten.