zymurgy

[zahy-mur-jee] /ˈzaɪ mɜr dʒi/
noun
1.
the branch of applied chemistry dealing with fermentation, as in winemaking, brewing, the preparation of yeast, etc.
Origin
1865-70; zym- + -urgy
British Dictionary definitions for zymurgy

zymurgy

/ˈzaɪmɜːdʒɪ/
noun
1.
the branch of chemistry concerned with fermentation processes in brewing, etc
Word Origin and History for zymurgy
n.

branch of chemistry which deals with wine-making and brewing, 1868, from Greek zymo-, comb. form of zyme "a leaven" (from PIE root *yeue-; see juice) + -ourgia "a working," from ergon "work" (see urge (v.)).

The last word in many standard English dictionaries (and this one); but in the OED [2nd ed.] the last word is zyxt, an obsolete Kentish form of the second person singular of see (v.).