おとろ衰otoroえるeru
1.
To experience a reduction in strength or vitality, diminishing in effectiveness or activity over time.
2.
To undergo a gradual process of decline, leading to a loss of vitality, presence, or significance.
3.
To fade or weaken, particularly in terms of physical capabilities or qualities, reflecting a state of deterioration.
4.
To decline in status or condition, often implying a shift from a once-flourishing state to one of lesser importance or performance.
Example:
私 は体力が衰えた。