Crag
Etymology
Of Celtic origin, related to Welsh "craig" and Scottish Gaelic "creag" ("rock, cliff"). It is one of a handful of landscape words English absorbed from the Celtic languages of Britain.
noun · /KRAG/
A steep, rugged rock face or projecting mass of rock.
What it names
A jagged outcrop of bare rock — the kind that defines a rugged skyline.
Example
An eagle’s nest clung to the crag above the valley.
Related idea
A crag is a rough rock face; a promontory is a headland of rock jutting out into water or lower land.
See also