Ridge
/ɹɪdʒ/
noun
The back of any animal; especially the upper or projecting part of the back of a quadruped.
Any extended protuberance; a projecting line or strip.
“The plough threw up ridges of earth between the furrows.”
The line along which two sloping surfaces meet which diverge towards the ground.
verb
To form into a ridge
To extend in ridges