unus, -a, -um
(ius) one
duo, duorum, duobus, duos, duobus; duae, duarum, duabus, duas, duabus; duo, duorum, duobus, duo, duobus
two
tres, trium, tribus, tres, tribus; tres, trium, tribus, tres, tribus; tria, trium, tribus, tria, tribus
three
milia, milium, milibus, milia, milibus
(pl.) thousands
quattuor
four
quinque
five
sex
six
septem
seven
octo
eight
novem
nine
decem
ten
undecim
eleven
duodecim
twelve
tredecim
thirteen
quattuordecim
fourteen
quindecim
fifteen
sedecim
sixteen
septendecim
seventeen
duodeviginti
eighteen
undeviginti
nineteen
viginti
twenty
viginti unus
twenty one
triginta
thirty
quadraginta
fourty