noun, feminine/bly.ɛt/plural: bluettes
scintilla (small spark); trifle (unimportant thing, especially a small, unpretentious book or story)
“Mais gardez vos réflexions pour vous et écoutez-moi car mon petit doigt me dit que cette histoire va vous amuser. Vous adorez les petites bluettes.” — But keep your thoughts to yourself and listen to me, because something tells me you're going to enjoy this. You love frivolous little stories.
From beluette, from Old French belue (“spark”).