In my book, I read that Lactides and lactones are cyclic esters which contain two and one ester group in them, respectively. They are formed when $\alpha$-hydroxy; and $\gamma$- or $\delta$- hydroxy carboxylic acids; respectively, are esterified.
Now, there exists a certain similarity between amides and esters (both being carboxylic acid-derivatives), such as the similarity between ester bonds in polyesters and amide bonds in polyamides.
In this context, I have a question: Do amides have compounds similar to lactides and lactones? What are they commonly known as?
Please let me know a good source that I could refer to in addition to any answers posted, or please cite any sources used.