“IMPRIMIS” is a valid word. — 14 points Scrabble

prisma polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
primithe principal part of a duet (especially a piano duet)
impis
primsassume a prim appearance

irisplants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
ripsa dissolute man in fashionable society
rimsthe shape of a raised edge of a more or less circular object
primassume a prim appearance
mirilittle known Kamarupan languages
imps(folklore) fairies that are somewhat mischievous
simp
mirs
impi

sirterm of address for a man
ripa dissolute man in fashionable society
sipa small drink
sim
rimthe shape of a raised edge of a more or less circular object
sri
psia unit of pressure
mir
mis
imp(folklore) fairies that are somewhat mischievous
mim
pis
isma belief (or system of beliefs) accepted as authoritative by some group or school

ishave the quality of being; (copula, used with an adjective or a predicate noun)
mma metric unit of length equal to one thousandth of a meter
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
pithe ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

IMPRIMIS