Glucose
mid 19th century: from French, from Greek gleukos ‘sweet wine’, related to glukus ‘sweet’.
wiktionary
Through French, from Ancient Greek γλεῦκος(gleûkos, “wine, must”); note: -ose comes from glucose, not the other way round. In other words, the view of the word glucose as gluco- + -ose is a reanalysis rather than a historical etymology. This is unusual for being a reanalysis that works completely, that is, without any leftover nonsense syllables (such as the ham- in reanalyzed hamburger).
etymonline
glucose (n.)
name of a group of sugars (in commercial use, "sugar-syrup from starch"), 1840, from French glucose (1838), said to have been coined by French professor Eugène Melchior Péligot (1811-1890) from Greek gleukos "must, sweet wine," related to glykys "sweet" (see gluco-). It first was obtained from grape sugar. Related: Glucosic.
