Sommet.
ETYM Old Fren. creste, French cręte, Latin crista.
1. The top line of a hill, mountain, or wave.
2. A showy growth of e.g. feathers or skin on the head of a bird or other animal.
3. (Heraldry) In medieval times, used to decorate a helmet.
ETYM Old Eng. rigge the back, as. hrycg; akin to Dutch rug, German rücken, Old High Germ. rucki, hrukki, Icel. hryggr, Swed. rugg, Dan. ryg.
1. A beam laid along the ridge of a roof; provides attachment for upper end of rafters; SYN. ridgepole, rooftree.
2. A long narrow natural elevation or striation.
3. A long narrow range of hills.
4. Any long raised strip.