IPA: /ɪnˈvɛtərəsi/
KK: /ɪnˈvɛtərəsi/
The condition of being deeply established or long-lasting, often referring to habits or behaviors that are hard to change.
His inveteracy in smoking made it difficult for him to quit, despite his best efforts.
Inveteracy is formed from "in-" (meaning not) and "veteris" (meaning old or ancient) and the suffix "-acy" (indicating a state or quality). The word describes the state of being not just old, but deeply ingrained or habitual, often referring to a long-standing condition or practice.
Think of something that is 'not' new ('in-') and is 'old' ('veteris') — this helps you remember that inveteracy refers to a long-standing habit or condition.