Origin: 1830–40; < F: lit., pile of chips (hence, workshop); OF astele chip (< LL astella, dim. of L astula, var. of assula splinter, equiv. to ass(is) plank + -ula-ule) + -ier-ier2
at·el·ier (āt'l-yā') n. A workshop or studio, especially for an artist or designer.
[French, from Old French astelier, carpenter's shop, from astele, splinter, from Late Latin astella, alteration of Latin astula, diminutive of assis, board.]
1840, from Fr., from O.Fr. astelier "workshop," from astele "small plank, a shaving, splinter," probably from L.L. hastella "a thin stick," dim. of hasta "spear, shaft."