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

galaa gay festivity
gallan open sore on the back of a horse caused by ill-fitting or badly adjusted saddle
palla sudden numbing dread
algaprimitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves

allquantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class
pala close friend who accompanies his buddies in their activities
lapthe upper side of the thighs of a seated person
galUnited States liquid unit equal to 4 quarts or 3.785 liters
gapa conspicuous disparity or difference as between two figures
lagthe act of slowing down or falling behind
agatitle for a civil or military leader (especially in Turkey)
alaa flat wing-shaped process or winglike part of an organism
alpany high mountain
aal

laa white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
ala silvery ductile metallic element found primarily in bauxite
paan informal term for a father; probably derived from baby talk
aaa dry form of lava resembling clinkers
aga soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

PLAGAL