Most studies of science end with the suffixes -logy , -nomy and -metry , as defined in the answer to the question Meaning of '-onomy', '-ology' and '-ography' , including examples like 'geology', 'astronomy' and 'photometry' (which I specialise in). However, there are exceptions, in particular, the science of chemistry . There is another discussion about the term, chemist , in the question The word “chemist” and its origins? , and further from OED : Of English formation: in 17th c. chymistrie , f. chymist (chemist) + -ry, ‘the art or practice of the chemist’; at first probably contemptuous, cf. palmistry, sophistry, casuistry , etc. This question is about the actual term for the science itself – chemistry – what is its origin? Additionally, does the fact the word ends in -istry and not one of the more standard suffixes have a connection to terms such as palmistry (as in the quote above)?