[A] Plural genitive -ium (Sg. abl. -i)

A1) Three terminations
A2) Two terminations
A3) One termination

[B] Plural genitive -um (Sg. abl. -i)

B1) One termination 　

[C] Indeclenable
　

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A1) Three terminations [Back to the top]

acer acr-is -e - sharp/keen
alacer alacr-is -e - brisk/eager
celeber celebr-is -e - crowded/populus/famous
celer celer-is -e - swift/fast
december -is -e - of December
equester equestr-is -e - equestrian
november -is -e - of November
october -is -e - of October
september -is -e - of September

　

A2) Two terminations [Back to the top]

aequalis -is -e - equal/like/even/on a par
brevis -is -e - short
civilis -is -e - civic/civil
coelestis -is -e - heavenly/from heaven/celestial
communis -is -e - common/shared by all/general
compluris -is -e - more than one/several/many/a number
consularis -is -e - consular
credibilis -is -e - believable
crudelis -is -e - cruel
difficilis -is -e - difficult/hard
dissimilis -is -e - unlike/different
dulcis -is -e - sweet
facilis -is -e - easy/easy to deal with/affable/good
familiaris -is -e - domestic/friendly/intimate
fatalis -is -e - destined/fated/fateful
fertilis -is -e - fertile
fidelis -is -e - faithful
flexibilis -is -e - pliant/flexible/yielding/tractable
fortis -is -e - brave/powerful/strong
grandis -is -e - full
gravis -is -e - heavy/severe/grievous/harsh/troublesome/important/serious/weighty
horribilis -is -e - dreadful
hostilis -is -e - enemy's/hostile
humilis -is -e - low
immanis -is -e - enormous/monstrous/inhuman/savage
immortalis -is -e - immortal
impossibilis -is -e - impossible
incolumis -is -e - unharmed/safe
incomprehensibilis -is -e - incomprehensible
incredibilis -is -e - unbelievable
indissolubilis -is -e - indestructible
indivisibilis -is -e - indivisible
ineffabilis -is -e - ineffible/unexpressible
inermis -is -e - unarmed/defenceless
inlustris -is -e - bright/clear/manifest/famous/renowned
insignis -is -e - distinguished
inutilis -is -e - useless
iuvenis -is -e - young
lenis -is -e - soft/gentle/mild
levis -is -e - light/nimble/light
lunaris -is -e - lunar
mediocris -is -e - middling/moderate/ordinary
mercurialis -is -e - mercurial
militaris -is -e - military
mirabilis -is -e - marvellous/wonderful
mitis -is -e - mellow/gentle/mild
mobilis -is -e - moveable/easy moved/agile/fleet/nimble/changeable/fickle
mollis -is -e - soft/calm/gentle/pliant/yielding/irresolute/effeminate/agreeable/pleasant
mortalis -is -e - subject to death/mortal
mutabilis -is -e - changeable/inconsistant/variable
muliebris -is -e - woman's/feminine/effeminate
naturalis -is -e - natural/by birth
navalis -is -e - naval
nobilis -is -e - well
omnis -is -e - all/every
perennis -is -e - everlasting/perpetual/never failing
perutilis -is -e - very useful
pinguis -is -e - fat/fertile/rich/dull/stupid
popularis -is -e - of the people/democratic/popular
qualis -is -e - of what kind?
rudis -is -e - crude/raw/inexperienced in [w gen.]
salubris -is -e - health
salutaris -is -e - healthful/salutary/conducive to welfare
segnis -is -e - slack/slothful/sluggish
servilis -is -e - slave's/servile
silvestris -is -e - wooded
similis -is -e - like/similar
singularis -is -e - one at a time/single/matchless/unique
sollemnis -is -e - established/fixed/stated/ceremonial/solemn/customary
spiritualis -is -e - spiritual
stabilis -is -e - firm/steadfast/steady
stellaris -is -e - starry/stellar
suavis -is -e - pleasant/sweet
sublimis -is -e - elevated/borne aloft/on high/high/lofty
sublunaris -is -e - under the moon/sublunary
subtilis -is -e - fine/nice/delicate/precise/keen/subtle
subtristis -is -e - rather sad
supernaturalis -is -e - supernatural
talis -is -e - of such a kind/such like
tenuis -is -e - thin/slender/slight/feeble/weak/poor/trifling/fine/subtle
terrestris -is -e - earthly/on earth
terribilis -is -e - dreadful/frightful
tristis -is -e - sad/saddening/bitter/mournful/gloomy/harsh/morose
turpis -is -e - ugly/unsightly/base/disgraceful/shameful
universalis -is -e - general
utilis -is -e - useful/advantageous/profitable/expedient
vigilis -is -e - awake/wakeful/watchful
vilis -is -e - cheap/paltry/worthless
viridis -is -e - green/blooming/fresh
virilis -is -e - man's/of manhood/manfully/manly
volatilis -is -e - winged/flying/volatile
volucris -is -e - flying/winged
vulgaris -is -e - common/general

altior altior altius - taller
nequior nequior nequius - more worthless

A3) One termination [Back to the top]

adolescens adolescent-is - young man/ coming to maturity
aiens aient-is - saying/affirming
ales alit-is - winged
amens ament-is - mad
ardens ardent-is - glowing/fiery/hot/ablaze
atrox atroc-is - terrible/fearful/cruel
audax audac-is - bold/daring
audens audent-is - brave
breviloquens breviloquent-is - brief
clemens clement-is - gentle/mild/merciful
concors concord-is - harmonious
consequens consequent-is - coherent/reasonable/consequent
constans constant-is - stable/steadfast/consistent
continens continent-is - enclosing/containing/limiting
demens dement-is - mad
diligens diligent-is - careful
discors discord-is - at variance/disagreeing/discordant
duplex duplic-is - twofold/double
efficax efficac-is - efficacious/effectual/powerful
evidens evident-is - obvious/apparent/manifest/plain/clear
expers expert-is - without share in/devoid of/free from
felix felic-is - fruitful/fortunate/lucky
fervens fervent-is - boiling hot/glowing/burning
florens florent-is - flourishing/in the prime
forox foroc-is - spirited/courageous/fierce/savage
fragrans fragrant-is - sweet
frequens frequent-is - crowded/numerous/in full strength/repeated/often occurring
fulgens fulgent-is - shining/bright/glistening
hieroglyphex hieroglyphic-is - hieroglyphic
immemor immemor-is - unmindful/forgetful
imprudens imprudent-is - lacking foresight/off one's guard
inans inan-is - empty/void/useless/vain
iners inert-is - inactive/sluggish
infelex infelic-is - unfruitful/unlucky
ingens ingent-is - huge/mighty/wise
innocens innocent-is - harmless/guiltless/innocent
inops inop-is - resourceful/helpless/needy/destitute
insequens insequent-is - ensuing (of time)/following
intrans intrant-is - entering (person)
libens libent-is - glad/willing
locuples locuplet-is - rich/substantial/opulent/wealthy
memor memor-is - mindful/remembering
mendax mendac-is - lying/counterfeit/false
neglegens neglegent-is - careless/neglectful
nocens nocent-is - criminal/guilty
occidens occident-is - western/connected with sunset or to the evening
omnipotens omnipotent-is - almighty/omnipotent/the Almighty
oriens orient-is - eastern/rising
pars par-is - equal
pes ped-is - on foot
potens potent-is - powerful/having power over [w gn]
praegnans praegnant-is - with child/pregnant/full/swollen
praesens praesent-is - present/immediate/effective/present to aid
praestans praestant-is - pre
prudens prudent-is - discreet/sensible [w gn]/experienced in/practised in
recens recent-is - fresh/new/recent
repens repent-is - sudden
rubens rubent-is - ruddy/red/redden
sagax sagac-is - shrewd/sagacious/intellectually quick/acute/wise
sapiens sapient-is - sensible/wise
simplex simplic-is - simple/single/plain/uncompounded/unmixed
sitiens sitient-is - thirsty/dry
supplex supplic-is - kneeling/humbly begging/suppliant/entreating
triplex triplic-is - threefold/triple
uber uber-is - abounding/rich/full/abundant/copious
velox veloc-is - speedy/swift
　

B1) One termination [Back to the top]

compos, compot-is - in possession
dives divit-is - rich
particeps particip-is - sharing, partaking
pauper pauper-is - poor/of moderate means
princeps princip-is - first
superstes superstit-is - surviving
vetus veter-is - old/of long standing

C) Indeclenable
frugi - frugal, honest, worthy, virtuous
macte - magnified, glorified
nequam - useless, worthless, bad, good-for-nothing
potis/pote - able, capable, possible