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

comet(astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit
chemo
comteFrench philosopher remembered as the founder of positivism; he also established sociology as a systematic field of study

comethe thick white fluid containing spermatozoa that is ejaculated by the male genital tract
them
homewhere you live at a particular time
echothe repetition of a sound resulting from reflection of the sound waves
methan amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
mothtypically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae
tomea (usually) large and scholarly book
etchmake an etching of
mote(nontechnical usage) a tiny piece of anything
cotea small shelter for domestic animals (as sheep or pigeons)

the
metcome together
hotused of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning
tom(ethnic slur) offensive and derogatory name for a Black man who is abjectly servile and deferential to Whites
toeone of the digits of the foot
cota sheath worn to protect a finger
hemthe edge of a piece of cloth; especially the finished edge that has been doubled under and stitched down
hoea tool with a flat blade attached at right angles to a long handle
ohma unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere
hetmade warm or hot (`het' is a dialectal variant of `heated')
thoa branch of the Tai languages
mota clever remark
eth
moc
mhoa unit of conductance equal to the reciprocal of an ohm

to
mea state in New England
hea very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
oha midwestern state in north central United States in the Great Lakes region
ema quad with a square body
eh
hoa trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
hma metric unit of length equal to 100 meters
moan indefinitely short time
et
om
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COMETH