Hippophagy is not in my dictionary, but obviously means "eating horse meat". I can remember
when the French were thought peculiar (among other things not suitable for mention) for
eating not only frogs' legs, but horsemeat. I'm sure the availability of horsemeat is now small.

"Hippophagy (the eating of horsemeat) may seem unusual or abhorrent to many Australian horse
lovers but its origins may be found in the mists of time. Horsemeat has been on the human menu
since the Palaeolithic era. Prehistoric Eurasian tribes initially regarded horses as game animals and
then herded them for meat. Later the horse assumed its historic role in the progress of mankind
and thus became an object of reverence for some nomadic pastoralist cultures. These people ate
horseflesh at religious ceremonies and funeral feasts and buried their dead with horse and
saddlery to ease the journey into the next world. "