“EMPERY” is a valid word. — 13 points Scrabble

emerya hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper)
peery

merea small pond of standing water
preya person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence
peera person who is of equal standing with another in a group
perma city in the European part of Russia
eyrea shallow salt lake in south central Australia about 35 feet below sea level; the largest lake in the country and the lowest point on the continent
pyrewood heaped for burning a dead body as a funeral rite
pree
eeryinspiring a feeling of fear; strange and frightening
eyer

eyethe organ of sight
yep
per
peeliquid excretory product
repinformal abbreviation of `representative'
ere
prya heavy iron lever with one end forged into a wedge
ryethe seed of the cereal grass
rema recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
ree
pye
eme

mea state in New England
my
ema quad with a square body
era trivalent metallic element of the rare earth group; occurs with yttrium
rea rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
ye
pethe 17th letter of the Hebrew alphabet

EMPERY