Fermented honey = honey that contains a tiny bit of moisture and which has naturally fermented (like natural sauerkraut, yoghurt, kumiss, high meat, stink fish, fermented seal oil, fermented whale oil, etc.)
Mead = a fermented liquid beverage made from a naturally fermented solution of (honey + added water) and sometimes other ingredients
Fermented Honey http://www.westonaprice.org/food-features/499-fermented-honey.html"Since early times, man has made fermented drinks with honey. The most important was mead, an alcoholic beverage, enjoyed by the English and Russians. The word derives from the Sanskrit word for honey, which is madhu. A similar drink called t’ej is popular in Ethiopia.
What is less well known is the fact that honey itself can ferment, if it contains enough residual moisture and is left in a warm place--honey ferments but never spoils! Fermented honey actually expands somewhat, and develops rich flavors.
It is an even better aid to digestion than regular honey."
Really Raw Fermented Honeyhttp://www.reallyrawhoney.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=RRH&Category_Code=FRRH"Fermented honey is the Nectar and Ambrosia of the Greek gods and the basic ingredient of Mead, a beverage enjoyed since antiquity.
With a rich, sharp taste and smell, our fermented honey is soft and frothy. The taste and consistency make it ideal for lemonade or smoothies (see our lemonade recipe). In general, it can be used exactly like our other honeys.
Moisture and warmth produce fermentation. When the moisture level of the honey is slightly elevated and the temperature is warm, fermentation may occur, due to the enzymes and the yeast in honey. Two main reasons for heating honey in modern times are to stop fermentation and be able to strain it. But fermentation is not harmful. Some people believe that it is more effective for digestion than honey that is not fermented, but we have not seen any documentation to either prove or disprove this theory.
During the fermentation process the honey can get bubbly and even overspill out of the jar, so keep that in mind when storing."
Mead http://en.wikipedia.org/wiki/Mead"Mead (pronounced /'mi?d/ meed) (also called honey wine) is an alcoholic beverage that is produced by fermenting a solution of honey
and water.[1] It may also be produced by fermenting a solution of water and honey with grain mash; the mash is strained off immediately after fermentation."