Origin of eclat
- French brilliance from Old French esclat splinter from esclater to burst out, splinter probably of Germanic origin
From American Heritage Dictionary of the English Language, 5th Edition
- Borrowing from French, from éclater (“to burst out”), from Middle French esclater (“to break, break violently”), from Old French esclater (“to separate from, sunder out”) (deverbal also in Old French: esclat), from Frankish *slaitan (“to split, break”), from Proto-Germanic *slaitijaną, causative of Proto-Germanic *slītaną (“to cut up, split”). Akin to Old High German sleizan (“to tear”), Old English slītan (“to split”). More at slice, slit.