Flamberge

Not a sword type of its own, but often used to describe a great-sword with a wavy blade. Originated as a way of mocking one particular french noble's habit of carrying an incredibly large blade with him.
Found on http://web.ceu.hu/medstud/manual/SRM/gloss.htm

Flamberge

An unusual waved-bladed rapier popular with officers and upper classes during the 1600s. It was considered to look both fashionable and deadly as well as erroneously believed to inflict a more deadly wound. When parrying with the flamberge, the opponent's sword was slowed slightly as it passed along the length. It also created a disconcerting vibra
Found on http://www.encyclo.co.uk/local/21591
No exact match found