What does Dryden mean by and ldquoto spare the grossness of the names and?

In Dryden's context, "to spare the grossness of the names" refers to the idea of avoiding crude or vulgar language in poetry and literature. He advocates for using elevated and refined language that maintains dignity and artistry, allowing the work to resonate more deeply with readers. This approach enhances the overall aesthetic and moral quality of the writing, aligning with the ideals of classical literature.