来自PIE*las,松软的，缺乏管教的，词源同lazy.引申词义好色，淫荡的，词义演变比较wanton.

1. The man was lascivious, sexually perverted and insatiable.

这个人是一个欲壑难填的变态色情狂。

2. Scaccia kept telling Humboldt that she was still in New York and doing lascivious thing.

斯卡西亚一直向洪堡报告,她仍然在纽约干荒淫无耻的勾当.

3. In his old age Cato became lascivious and misconducted himself with a woman slave.

到了晚年,卡托沉溺于女色,跟一个女奴私通.

4. I was there to protect her from the importunities of lascivious men.

我在那里保护她,不受那些好色男子的纠缠不休.

5. Is lascivious online content, traditionally on top, losing its lustre?

在线淫秽内容历来风行, 但如今渐入颓势?