IPA: /ˈsɒd.ən.nəs/
KK: /sɑdənnəs/
The state of being soaked or saturated with liquid, often to the point of being heavy or waterlogged.
The soddenness of the ground made it difficult to walk without slipping.
Soddenness is formed from "sodden" (from Old English "sodden", meaning soaked or saturated) and "-ness" (meaning the state or quality of). The word "soddenness" refers to the state of being soaked or saturated with moisture.
Think of being 'soaked' ('sodden') and the '-ness' indicating a state. This helps you remember that 'soddenness' means the quality of being soaked.