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

cosya padded cloth covering to keep a teapot warm
chisthe circulating life energy that in Chinese philosophy is thought to be inherent in all things; in traditional Chinese medicine the balance of negative and positive forms in the body is believed to be essential for good health
cosha piece of metal covered by leather with a flexible handle; used for hitting people
coys
hoysa flatbottom boat for carrying heavy loads (especially on canals)
ichs

his
cosratio of the adjacent side to the hypotenuse of a right-angled triangle
shya quick throw
chithe circulating life energy that in Chinese philosophy is thought to be inherent in all things; in traditional Chinese medicine the balance of negative and positive forms in the body is believed to be essential for good health
soya source of oil; used for forage and soil improvement and as food
icydevoid of warmth and cordiality; expressive of unfriendliness or disdain
ich
coyaffectedly modest or shy especially in a playful or provocative way
sicurge to attack someone
hoya flatbottom boat for carrying heavy loads (especially on canals)
hic
cisan alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991
ohs

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
oha midwestern state in north central United States in the Great Lakes region
hian expression of greeting
yo
hoa trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
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
sh
oy
osa mouth or mouthlike opening

COYISH