Following are all the twelveth like words, in the list below.
TWELFE
100% like twelveth
TWELVISH
100% like twelveth
FIVETH
99.99% like twelveth
TWIFOLD
99.99% like twelveth
TWYFOLD
99.98% like twelveth
TWELVEPENNY
99.98% like twelveth
MEDIEVAL
99.98% like twelveth
TRIGESIMAL
99.97% like twelveth
DUODENARY
99.97% like twelveth
TWISSEL
99.96% like twelveth
THREETH
99.96% like twelveth
SOOTH
99.96% like twelveth
HEREAFTER
99.95% like twelveth
ATHIRST
99.95% like twelveth
THITHER
99.94% like twelveth
SIXT
99.94% like twelveth
TRAVERSARY
99.94% like twelveth
HITHERMOST
99.93% like twelveth
LOGARITHMAL
99.93% like twelveth
SEAVENTH
99.92% like twelveth
OFTEN
99.92% like twelveth
EARTHEN
99.92% like twelveth
TWICHILD
99.91% like twelveth
SESQUIDUPLE
99.91% like twelveth
OLDEN
99.9% like twelveth
HEBDOMADARY
99.9% like twelveth
TRUSTFUL
99.9% like twelveth
ALDERMOST
99.89% like twelveth
HEBDOMADAL
99.89% like twelveth
HITHER
99.88% like twelveth
HOOLY
99.88% like twelveth
VENERABLE
99.88% like twelveth
ANTEDILUVIAN
99.87% like twelveth
TERMINAL
99.87% like twelveth
TECHNOLOGIC
99.86% like twelveth
TITH
99.86% like twelveth
AUTHENTICAL
99.86% like twelveth
DOMESTICAL
99.85% like twelveth
INTERN
99.85% like twelveth
ULTIMO
99.84% like twelveth
YTHUNDERED
99.84% like twelveth
PRACTIC
99.84% like twelveth
YWROKEN
99.83% like twelveth
PREDESTINATE
99.83% like twelveth
LETHARGICAL
99.82% like twelveth
MEDIAEVAL
99.82% like twelveth
BEFORESAID
99.82% like twelveth
LOGARITHMETIC
99.81% like twelveth
ENSEINT
99.81% like twelveth
BENDED
99.8% like twelveth
ATTICAL
99.8% like twelveth
AFORETIME
99.8% like twelveth
CRYPTOGRAPHAL
99.79% like twelveth
YESTER
99.79% like twelveth
EXTREME
99.78% like twelveth
STALWORTH
99.78% like twelveth
ANCIENT
99.78% like twelveth
THIRDE
99.77% like twelveth
TIMELY
99.77% like twelveth
SELDOM
99.76% like twelveth
ANNUARY
99.76% like twelveth
FORETHOUGHTED
99.76% like twelveth
UNVISIBLE
99.75% like twelveth
AFTERMOST
99.75% like twelveth
TROUBLOUS
99.74% like twelveth
NIGH
99.74% like twelveth
POSTNATE
99.74% like twelveth
FEWE
99.73% like twelveth
FLUCTUOUS
99.73% like twelveth
EIGHTIETH
99.72% like twelveth
TOTHER
99.72% like twelveth
SUBTERFLUOUS
99.72% like twelveth
INNOCENTE
99.71% like twelveth
SEPULT
99.71% like twelveth
WHILOM
99.7% like twelveth
ERST
99.7% like twelveth
WITCHING
99.7% like twelveth
THRALL
99.69% like twelveth
MEDIOCRAL
99.69% like twelveth
BINAL
99.68% like twelveth
YESTERN
99.68% like twelveth
HEXT
99.68% like twelveth
DECUMAN
99.67% like twelveth
ASSISTFUL
99.67% like twelveth
LATED
99.66% like twelveth
MOSAICAL
99.66% like twelveth
STARVEN
99.66% like twelveth
YOUNGLING
99.65% like twelveth
MENSTRUOUS
99.65% like twelveth
AFOREGOING
99.64% like twelveth
FIVESOME
99.64% like twelveth
BEBELTED
99.64% like twelveth
EXTEMPORAL
99.63% like twelveth
YOUNGTHLY
99.63% like twelveth
NOUGHTH
99.62% like twelveth
THYE
99.62% like twelveth
BESTEAD
99.62% like twelveth
NEEDFUL
99.61% like twelveth
SPRENT
99.61% like twelveth
SEVERAL
99.6% like twelveth