What is an example of euphemism as used in the book narrative of the life of Frederick Douglass an American slave?

In "Narrative of the Life of Frederick Douglass," one example of a euphemism is the term "peculiar institution" used to refer to slavery. This phrase downplays the brutal reality of enslavement and instead presents it as a socially accepted system, masking the horrific conditions and dehumanization faced by enslaved individuals. Douglass critiques this language to highlight the moral contradictions and injustices inherent in slavery.