“DEMENT” is a valid word. — 9 points Scrabble

needa condition requiring relief
meeta meeting at which a number of athletic contests are held
tendhave a tendency or disposition to do or be something; be inclined
teena juvenile between the onset of puberty and maturity
mendsewing that repairs a worn or torn hole (especially in a garment)
dentan appreciable consequence (especially a lessening)
deemkeep in mind or convey as a conviction or view
metea line that indicates a boundary
teedplace on a tee
neemlarge semi-evergreen tree of the East Indies; trunk exudes a tenacious gum; bitter bark used as a tonic; seeds yield an aromatic oil; sometimes placed in genus Melia
teembe teeming, be abuzz
deet
dene
meeda fitting reward
deme

menthe force of workers available
endeither extremity of something that has length
metcome together
tenthe cardinal number that is the sum of nine and one; the base of the decimal system
teda tough youth of 1950's and 1960's wearing Edwardian style clothes
neta computer network consisting of a worldwide network of computer networks that use the TCP/IP network protocols to facilitate data transmission and exchange
dee
denthe habitation of wild animals
meda master's degree in education
teethe starting place for each hole on a golf course
nee(meaning literally `born') used to indicate the maiden or family name of a married woman
eme

mea state in New England
ema quad with a square body
dea Mid-Atlantic state; one of the original 13 colonies
edimpotence resulting from a man's inability to have or maintain an erection of his penis
enhalf the width of an em
et
nea colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts

DEMENT