burin

Etymology

From French burin. Doublet of boline.

noun

1. A chisel with a sharp point, used for engraving; a graver.
   I kept staring at the same wallpaper on the same wall; I stared at it so often that every line of its zigzag pattern has etched itself on the innermost folds of my brain as if with an engraver’s burin. 2006, Stefan Zweig, translated by Anthea Bell, Chess, London: Penguin
2. A prehistoric flint tool