Non-Consonental Roots:

O:

oi - here, place

Uni-Consonental Roots:

U:

ûl - stream, current, path

Bi-Consonental Roots:

B:

B-D mountain

D:

D-M excavations, halls, mansions

F:

F-T ?

G:

G-N beginning

N:

N-D look

N-L path, course, rivercourse or bed

N-T end

R:

R-K swamp

R-S fire, flames

T:

T-M air

Z:

Z-N dimness, shadow, dark

Tri-Consonental Roots:

B:

B-K-N awake

B-L-G swallow

B-N-D head

B-RR-D grow heavy

B-R-K ax, cracks

B-R-Z red

B-SH-K bones

B-Z-G kill, slay

B-Z-R deep

D:

D-B-N valley

D-D-D father

D-R-G grave

F:

F-L-K hew rock

F-L-L skin

F-R-KH world

G:

G-B-L great

G-L-B language, speech

G-M-L old

G-N-D excavate, tunnel, mine

G-N-G walk

G-R-D fear

G-R-F take

G-TH-L fortress

KH:

KH-L-D glass

KH-Q-W spit

KH-Z-D dwarves

K:

K-B-L silver

K-LL-D shakes

K-L-L cold

K-L-T sound, hear

K-M-N earth

K-R-D heart

K-R-SH cut

K-R-K split, break

K-R-T glory

L:

L-B-B lick

L-G-L deathless, immortal

L-KH-D light

M:

M-B-R horn

M-R-D death

M-R-N remember

N:

N-S-S save

N-R-G black, Mordor

N-Z-F snap

SH:

SH-K-L shores

SH-F-T moves

SH-M-K gestures, hands

SH-N-K rip

SH-TH-R cloud

SH-RR-K surround

S:

S-G-N long

S-L-L all, wholly

S-L-N fall

S-K-D shadow

S-T-F step

R:

R-KH-S orcs

R-K-T shaft, ray, beam

R-S-S rise

R-Y-D heir, succeed

TH:

TH-R-K staff, help

T:

T-R-G beard

T-K-T silence

Z:

Z-B-D lord, realm

Z-G-R battle, fight

Z-G-L silver

Z-H-R building, house, build

Z-R-K spike