Correct

积年

/ jī nián /
Strokes

Definition

for a long time/over many years/old/advanced in age

Example

As a Noun

many years

1
nián
积年
jiǔ
de
zhēnglùn
争论

age-old dispute

2
nián
积年
jiǔ
de
隔阂
  
/
wèn
问题

long-standing estrangement/problem

3
nián
积年
jiùàn
旧案

law cases pending over the years