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

hivesan itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs
shiesa quick throw
shivsa knife used as a weapon
shive
visesa holding device attached to a workbench; has two jaws to hold workpiece firmly in place

hivea teeming multitude
hissa fricative sound (especially as an expression of disapproval)
shiva knife used as a weapon
shes
visea holding device attached to a workbench; has two jaws to hold workpiece firmly in place
seis
viescompete for something; engage in a contest; measure oneself against others
hiesmove fast

ishave the quality of being; (copula, used with an adjective or a predicate noun)
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)
hian expression of greeting
eh
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
esa radioactive transuranic element produced by bombarding plutonium with neutrons
sh

SHIVES