According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 22 words with the pattern -ON-Y. That is, five letter words with 2nd letter O and 3rd letter N and 5th letter Y. In alphabetical order, they are:

boney

bonny

coney

conky

donny

donsy

fonly

honey

honky

jonty

money

monty

nonny

poncy

poney

pongy

ponty

sonly

sonny

sonsy

toney

wonky

It's spelled voluptuous.
It means :
1. having strong sexual appeal; "juicy barmaids"; "a red-hot mama"; "a voluptuous woman"
(synonym) juicy, luscious, red-hot
(similar) sexy
2. (of a woman's body) having a large bosom and pleasing curves; "Hollywood seems full of curvaceous blondes"; "a curvy young woman in a tight dress"
(synonym) bosomy, busty, buxom, curvaceous, curvy, full-bosomed, sonsie, sonsy, well-endowed
(similar) shapely
3. furnishing gratification of the senses; "an epicurean banquet"; "enjoyed a luxurious suite with a crystal chandelier and thick oriental rugs"; "Lucullus spent the remainder of his days in voluptuous magnificence"; "a chinchilla robe of sybaritic lavishness"
(synonym) epicurean, luxurious, sybaritic, voluptuary
(similar) indulgent

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 172 words with the pattern -ON--. That is, five letter words with 2nd letter O and 3rd letter N. In alphabetical order, they are:

bonce

bonds

boned

boner

bones

boney

bongo

bongs

bonie

bonks

bonne

bonny

bonus

bonza

bonze

conch

condo

coned

cones

coney

confs

conga

conge

congo

conia

conic

conin

conks

conky

conne

conns

conte

conto

conus

convo

donah

donas

donee

doner

donga

dongs

donko

donna

donne

donny

donor

donsy

donut

fonda

fonds

fondu

fonly

fonts

gonad

gonef

goner

gongs

gonia

gonif

gonks

gonna

gonof

gonys

gonzo

honan

honda

honds

honed

honer

hones

honey

hongi

hongs

honks

honky

honor

ionic

jones

jongs

jonty

konbu

kondo

konks

loner

longa

longe

longs

monad

monal

monas

monde

mondo

moner

money

mongo

mongs

monie

monks

monos

monte

month

monty

nonas

nonce

nones

nonet

nongs

nonis

nonny

nonyl

oonts

ponce

poncy

ponds

pones

poney

ponga

pongo

pongs

pongy

ponks

ponts

ponty

ponzu

ronde

rondo

roneo

rones

ronin

ronne

ronte

ronts

sonar

sonce

sonde

sones

songs

sonic

sonly

sonne

sonny

sonse

sonsy

tonal

tondi

tondo

toned

toner

tones

toney

tonga

tongs

tonic

tonka

tonks

tonne

tonus

wonga

wongi

wonks

wonky

wonts

yonic

yonis

yonks

zonae

zonal

zonda

zoned

zoner

zones

zonks

la

on

en

el

nu

fa

no

os

so

law

owl

fen

own

use

few

fey

fez

low

owe

soy

sol

ley

say

leu

fun

sly

sea

sou

saw

sew

flu

fly

sen

foe

sow

sun

one

ass

any

awe

yen

awl

yea

yes

yew

lea

ale

now

ane

yon

oaf

way

ola

woe

nay

wen

fan

lye

lay

awn

eon

new

won

azo

yaw

neo

self

sens

onus

only

nous

sewn

safe

sane

sale

seal

sown

wean

wolf

wuss

weal

ways

wane

waul

yawl

yawn

zona

zone

zeal

zany

yaws

yowl

wale

unau

slue

snow

sofa

slow

sloe

slay

slew

sole

sone

sway

ulna

swan

soya

soul

aeon

slaw

nosy

fuse

fuss

fuel

fowl

foal

foul

fuze

eyas

lazy

leaf

laze

lawn

lass

anus

flue

flow

flan

flaw

fess

faze

faun

fawn

enol

elan

floe

awny

flea

flay

easy

lean

lane

loan

news

loss

lose

aloe

loaf

ness

nose

anew

lens

less

also

floss

ouzel

lousy

sulfa

ozena

lossy

ousel

louse

unsay

newly

wanly

felon

usual

essay

lowan

newsy

lyssa

false

fosse

zonal

fussy

snafu

loess

aloes

slews

leafy

alone

lasso

salon

snowy

sonsy

anole

fossa

souse

solfa

nosey

sales

solan

awful

awless

anulus

zonule

woeful

zonula

soleus

season

selsyn

lesson

sawfly

safely

sanely

felony

sleazy

flossy

unsafe

uneasy

unseal

useful

flyway

lowness

zealous

seafowl

awnless

sensual

nauseous

foulness

awfulness

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 267 words with the pattern -O--Y. That is, five letter words with 2nd letter O and 5th letter Y. In alphabetical order, they are:

bobby

bogey

boggy

boney

bonny

booby

boody

boofy

boogy

booky

boomy

booty

boozy

borty

bosky

bossy

bothy

botty

bousy

boysy

coaly

cobby

cocky

colby

coley

colly

comby

comfy

commy

coney

conky

cooey

cooky

cooly

coomy

copay

coppy

copsy

corby

corey

corky

corny

cosey

covey

cowry

coyly

cozey

dobby

doddy

dodgy

dogey

doggy

doily

dolly

donny

donsy

doody

dooly

doomy

doozy

dopey

dorky

dormy

dorty

dotty

dowdy

dowly

downy

dowry

doyly

foamy

fogey

foggy

foley

folky

folly

fonly

foody

footy

foray

forby

forky

forty

goary

goaty

gobby

godly

goety

goldy

golly

gooby

goody

gooey

goofy

gooky

gooly

goony

goopy

goory

goosy

gormy

gorsy

gouty

hoagy

hoary

hobby

hokey

holey

holly

homey

honey

honky

hoody

hooey

hooky

hooly

hooty

hoppy

horny

horsy

hosey

hotly

hotty

howdy

jokey

jolly

jolty

jonty

jotty

jowly

kooky

loamy

lobby

lofty

loggy

lolly

looby

looey

loony

loopy

loppy

lordy

lorry

lossy

loury

lousy

lovey

lowly

lowry

mobby

mochy

moggy

moldy

molly

mommy

money

monty

moody

mooly

moony

moory

mopey

moppy

mopsy

moray

mosey

mossy

motey

mothy

motty

mousy

nobby

nobly

noddy

noily

noisy

nonny

nooky

nosey

nouny

noway

nowty

poboy

pocky

poddy

podgy

poesy

pogey

pokey

poley

polly

pommy

poncy

poney

pongy

ponty

poofy

poovy

poppy

popsy

porgy

porky

porny

porty

posey

potsy

potty

pouty

powny

pozzy

roary

rocky

roguy

roily

roofy

rooky

roomy

roopy

rooty

ropey

rorty

roupy

rowdy

soapy

soddy

softy

soggy

soily

sonly

sonny

sonsy

sooey

sooty

sophy

soppy

sorry

soupy

toady

tocky

today

toddy

toffy

tokay

tolly

tommy

toney

toshy

tossy

totty

tousy

touzy

towny

towsy

towzy

wolly

womby

wonky

woody

woofy

wooly

woozy

wordy

wormy

worry

yolky

zooey

zooty