EUROPEAN WAVEY OR FLAME BLADES

[VANDOO]

I HAVE SEEN THE WAVEY BLADES ON SWORDS AND DAGGERS FROM FRANCE AND SPAIN AS WELL AS SEVERAL OTHER EUROPEAN COUNTRIES. THEY WERE REFERED TO AS FLAME OR FLAMBU FORM IF I REMEMBER CORRECTLY.
I WOULD LIKE TO KNOW IN WHAT TIME PERIOD AND IN WHAT COUNTRIES AND ANY OTHER PERTINENT INFORMATION THESE BLADES OCCUR.
THEY OCCUR IN BOTH THE PHILIPPINE KRIS AND SOME DAGGERS AS WELL AS IN THE KERIS DAGGERS FROM MALAYSIA AND INDONESIA. BUT THERE THEY ARE OFTEN CALLED NAGA (SNAKE FORM) RATHER THAN FLAME FORM.
THIS FORM LIKELY OCCURS IN OTHER COUNTRIES AS WELL, IT WOULD BE INTERESTING TO COMPARE TYPES, NAMES, REGIONS AND TIMES THEY OCCURED. WHERE AND WHEN DID THE FORM ORIGINATE? SNAKE OR FLAME?