研究社 新和英中辞典

‐ごし …越し

3 年越しの工事

construction work that has continued [lasted] for three years

20 年越しの友人関係

a friendship of 20 years' standing

a friendship 20 years old

山越しに

across [beyond] the mountain

垣根越しに見る

look over the fence

用例

彼には 3 年越し会っていない. I have not seen him these last three years. 父は 8 年越しの病人です. My father has been ill for eight long years.

斎藤和英大辞典

越し

読み方 ごし

接尾詞

Over

用例

垣根越しに見る
to look over the fence

眼鏡越しに見る
to look over one's spectacles

壁越しに聞く
to overhear on the other side of the wall

食卓越しに手紙を投げた
I threw the letter across the table.

この魚は宵越しができぬ
This fish will not keep over night.

江戸っ子は宵越しの金を使わぬ
The Edokko will not keep his money over night―let the morrow's sun rise on his earnings.

三年越しの借金
a debt of three years' standing

五年越しの友人
a friend of five years' standing

JMdict

越し

読み方：ごし

（名詞  接尾辞） across; over; beyond