“RIMOUS” is a valid word. — 8 points Scrabble

ours
soura cocktail made of a liquor (especially whiskey or gin) mixed with lemon or lime juice and sugar
sumoa Japanese form of wrestling; you lose if you are forced out of a small ring or if any part of your body (other than your feet) touches the ground
misoa thick paste made from fermented soybeans and barley or rice malt; used in Japanese cooking to make soups or sauces
rimsthe shape of a raised edge of a more or less circular object
mors(Roman mythology) Roman god of death; counterpart of Thanatos
rumsliquor distilled from fermented molasses
roms(computer science) memory whose contents can be accessed and read but cannot be changed
soria spore-producing structure in certain lichens and fungi
mirs

our
sirterm of address for a man
suma quantity of money
rumliquor distilled from fermented molasses
sim
rimthe shape of a raised edge of a more or less circular object
sri
rom(computer science) memory whose contents can be accessed and read but cannot be changed
soua former French coin of low denomination; often used of any small amount of money
mor
mir
mis
mos
mustype genus of the Muridae: common house mice; the tips of the upper incisors have a square notch
isma belief (or system of beliefs) accepted as authoritative by some group or school
oms
ors

ishave the quality of being; (copula, used with an adjective or a predicate noun)
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
ora state in northwestern United States on the Pacific
um
moan indefinitely short time
midestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
muthe 12th letter of the Greek alphabet
om
osa mouth or mouthlike opening

RIMOUS