The first letter of name makes your prefix, the first letter of your surname makes your suffix

ThunderClan - Aries, Taurus, Leo

RiverClan - Aquarius, Cancer, Libra

ShadowClan - Sagittarius, Scorpio, Virgo

WindClan - Capricorn, Gemini

SkyClan - Pisces

ThunderClan Prefixes

A: Bird

B: Raven

C: Crow

D: Parrot

E: Hawk

F: Falcon

G: Eagle

H: Dove

I: Buzzard

J: Stork

K: Owl

L: Piper

M: Heron

N: Chaffinch

O: Talon

P: Penguin

Q: Kiwi

R: Plover

S: Sparrow

T: Starling

U: Finch

V: Robin

W: Thrush

X: Gull

Y: Pigeon

Z: Woodpecker

ThunderClan Suffixes:

A: Dawn

B: Feather

C: Wing

D: Beak

E: Frost

F: Flight

G: Breeze

H: Claw

I: Branch

J: Heart

K: Shadow

L: Light

M: Mask

N: Nettle

O: Scratch

P: Flutter

Q: Dusk

R: Runner

S: Pelt

T: Song

U: Tail

V: Ear

W: Whisker

X: Flower

Y: Step

Z: Fur

RiverClan Prefixes:

A. Rain

B: Snow

C: Hail

D: Hurricane

E: Storm

F: Wind

G: Windy

H: Drizzle

I: Sun

J: Sunny

K: Cloud

L: Cloudy

M: Hot

N: Breeze

O: Thunder

P: Lightning

Q: Earthquake

R: Sleet

S: Cold

T: Blazing

U: Tornado

V: Cyclone

W: Tsunami

X: Stormy

Y: Misty

Z: Snow

RiverClan Suffixes:

A. Fur

B: Ripple

C: Pelt

D: Dapple

E: Storm

F: Feather

G: Wing

H: Heather

I: Shade

J: Claw

K: Whistle

L: Whisper

M: Drip

N: Flight

O: Step

P: Cloud

Q: Dove

R: Runner

S: Song

T: Petal

U: Foot

V: Mask

W: Mist

X: Flower

Y: Yarrow

Z: Bristle

ShadowClan Prefixes

A: Leaf

B: Sycamore

C: Oak

D: Wood

E: Maple

F: Elm

G: Larch

H: Beech

I: Birch

J: Rowan

K: Willow

L: Pine

M: Ash

N: Root

O: Alder

P: Aspen

Q: Spruce

R: Acacia

S: Cedar

T: Cypress

U: Elder

V: Fir

W: Hazel

X: Holly

Y: Leaf

Z: Juniper

ShadowClan Suffixes

A: Wing

B: Berry

C: Spring

D: Dapple

E: Branch

F: Flame

G: Shade

H: Tail

I: Dusk

J: Heart

K: Mist

L: Pelt

M: Fur

N: Pool

O: Cloud

P: Dawn

Q: Claw

R: Feather

S: Flight

T: Light

U: Beam

V: Flower

W: Ripple

X: Storm

Y: Speckle

Z: Song