What is "gangraena"

n. (alternative form of gangrene English)

Gangraena is a book by Thomas Edwards, published in 1646. A notorious work of "heresiography", i.e. the description in detail of heresy, it appeared the year after Ephraim Pagitt's Heresiography. These two books attempted to catalogue the fissiparous Protestant congregations of the time, in England particularly, into recognised sects or beliefs. Pagitt worked with 40 to 50 categories, Edwards went further with around three times as many, compiling a list of the practices of the Independents and more extreme radicals: