IPA: /ˈkɒnstənsi/
KK: /kɒnˈstænsɪ/
The quality of being steady and unchanging in purpose, affection, or condition.
Her constancy in supporting her friends during tough times is admirable.
Constancy → It is formed from "con-" (meaning together) and "stare" (meaning to stand). The word refers to the quality of standing firm or being steadfast together over time.
Think of standing 'together' ('con-') and being 'firm' ('stare') — that's why constancy means being steadfast.