IPA: //ˈfɜːrtɪl.nəs//
KK: /ˈfɜːrtɪlənəs/
The quality of being able to produce offspring or new growth; the ability to reproduce or support plant growth.
The farmer tested the soil for its fertileness before planting the crops.
Fertileness → It is formed from "fertile" (from Latin "fertilis", meaning fruitful or productive) and the suffix "-ness" (meaning the state or quality of). The word "fertileness" refers to the state of being fertile or capable of producing abundantly.
Think of 'fertile' meaning productive, and '-ness' indicating a state. This helps you remember that 'fertileness' is the quality of being able to produce abundantly.