可能来自 settle 拼写变体，比较 settle,长木凳，高背长椅。

1. When Eleanor returned, I was still sitting glumly on the settee.

埃莉诺回来的时候，我还闷闷不乐地坐在长沙发上。

来自柯林斯例句

2. We sat primly at either end of a long settee.

我们非常拘谨地坐在长椅的两头。

来自柯林斯例句

3. She was lying on a small settee in the parlor.

她躺在客厅的一张小长椅上.

来自《简明英汉词典》

4. Come and sit next to me on the settee.

过来跟我一块儿坐在沙发上.

来自《简明英汉词典》

5. I sat on the settee to unwrap the package while he stood by.

我坐在长椅上打开包裹时他就站在旁边。

来自柯林斯例句