“MUMMYING” is a valid word. — 18 points Scrabble

mummyinformal terms for a mother
gummyhaving the sticky properties of an adhesive
mingy(used of persons or behavior) characterized by or indicative of lack of generosity

guyan informal term for a youth or man
guna weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
mumof China
gymathletic facility equipped for sports or physical training
guma preparation (usually made of sweetened chicle) for chewing
ginstrong liquor flavored with juniper berries
mugthe quantity that can be held in a mug
umm
yum
yinthe dark negative feminine principle in Chinese dualistic cosmology
nimgame in which matchsticks are arranged in rows and players alternately remove one or more of them; in some versions the object is to take the last remaining matchstick on the table and in other versions the object is to avoid taking the last remaining matchstick on the table
mun
mig
mim
gnularge African antelope having a head with horns like an ox and a long tufted tail

ina unit of length equal to one twelfth of a foot
my
um
mma metric unit of length equal to one thousandth of a meter
midestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
unan organization of independent states formed in 1945 to promote international peace and security
muthe 12th letter of the Greek alphabet
nuthe 13th letter of the Greek alphabet

MUMMYING