I came across a word in an chemistry lecture which appears in plenty of places but none explaining where the word came from. The word in question is 'galligu'
1. The insoluble waste products of the Leblanc process.
It seems as if the word appeared out of nowhere and nobody questioned it, which is somewhat strange (though if I try hard enough I'll probably find it's not unheard of) for a science-related term. I have a hunch it may be somehow related to French, but nary a source to be found. Any help?
Example usage - http://www.nce.co.uk/the-perils-of-galligu/1228052.article