プログレッシブ和英中辞典(第4版)の解説
ねんりん【年輪】
&fRoman1;
❶〔木の〕an annual ring (of a tree); a tree ring
❷〔年々の歴史〕a year-by-year history
日本の年輪
the history of Japan
&fRoman2;〔刻まれた人生の苦労〕
あの人には人生の年輪を感じる
I can see 「the effect of the years on him [that he has gone through a lot (in the course of his life)].
彼の文章はさすがに年輪をつんでいる
What he writes shows the depth that only a man of his experience can have.
船体には年輪がきざまれていた
The ship carried traces of many hard voyages on her body.
年輪年代測定法
tree-ring dating