Meaning ‘ten’-ty creates a noun-ity creates a noun
twenty
thirty
forty
fifty
sixty
seventy
eighty
ninety
eleventy ha ha
admiralty
anxiety
casualty
certainty
cruelty
entirety
faculty
frailty
loyalty
penalty
piety
mayoralty
naivety
notoriety
novelty
poverty
property
propriety
royalty
safety
satiety
sobriety
society
sovereignty
specialty
subtlety
surety
variety
ability
absurdity
activity
animosity
antiquity
atrocity
audacity
authority
barbarity
brevity
brutality
calamity
capacity
captivity
causality
cavity
celebrity
charity
civility
clarity
commodity
community
congruity
credulity
curiosity
deformity
density
depravity
dexterity
dignity
diversity
divinity
docility
duplicity
enormity
entity
equality
equity
eternity
ethnicity
extremity
facility
fatality
ferocity
fertility
festivity
feudality
fidelity
finality
fluidity
formality
fragility
frivolity
frugality
futility
gravity
heredity
hilarity
hostility
humanity
humidity
humility
iconicity
identity
immensity
immunity
indemnity
infinity
infirmity
insanity
integrity
intensity
joviality
legality
lethality
levity
liability
liquidity
locality
lucidity
majority
maternity
maturity
mendacity
mentality
minority
mobility
modernity
morality
morbidity
mortality
nasality
nativity
necessity
nobility
normality
nudity
obesity
obscenity
obscurity
oddity
passivity
paternity
placidity
plurality
polarity
pomposity
precocity
priority
probity
profanity
publicity
purity
quality
quantity
rarity
reality
rigidity
salinity
sanctity
sanity
scarcity
security
senility
seniority
serenity
servility
severity
sexuality
sincerity
solemnity
solidity
stability
stupidity
tenacity
timidity
tonality
totality
toxicity
turbidity
urbanity
vacuity
validity
vanity
velocity
verbosity
vicinity
viscosity
vitality
vulgarity