“CUMBER” is a valid word. — 12 points Scrabble

curea medicine or therapy that cures disease or relieve pain
curban edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter)
cubea hexahedron with six equal squares as faces
rubea person who is not very intelligent or interested in culture
berma narrow ledge or shelf typically at the top or bottom of a slope
ecrua very light brown
mure

buma person who is deemed to be despicable or contemptible
ruban unforeseen obstacle
cuean actor's line that immediately precedes and serves as a reminder for some action or speech
rumliquor distilled from fermented molasses
rueEuropean strong-scented perennial herb with grey-green bitter-tasting leaves; an irritant similar to poison ivy
cuban awkward and inexperienced youth
cumthe thick white fluid containing spermatozoa that is ejaculated by the male genital tract
rec
rema recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
reb`Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms
curan inferior dog or one of mixed breed
emuany of various systems of units for measuring electricity and magnetism
burseed vessel having hooks or prickles
ecu
urb

mea state in New England
bea light strong brittle grey toxic bivalent metallic element
um
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
muthe 12th letter of the Greek alphabet

CUMBER