lest we forget

[ lest wee fer-get ]

idiom

1. we should not forget (often used as a cautionary phrase):

   Lest we forget, many large conflicts have started over small, insignificant areas.

   Lest we forget, fake news is still with us.

2. in case you have forgotten (used facetiously):

   The 1980s, lest we forget, was a terrible era for fashion.

Word History and Origins

Origin of lest we forget¹

Refrain from Rudyard Kipling's poem “Recessional” (1897)