Very old, wise person circling pitch

Wikipedia Word definitions in Wikipedia
The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface. The period lasted roughly 3.4 million years, and ended between 8700 BC (or BCE ) and 2000 BC with the advent ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Stone \Stone\, n. [OE. ston, stan, AS. st[=a]n; akin to OS. & OFries. st[=e]n, D. steen, G. stein, Icel. steinn, Sw. sten, Dan. steen, Goth. stains, Russ. stiena a wall, Gr. ?, ?, a pebble. [root]167. Cf. Steen .] Concreted earthy or mineral matter; also, ...