Vous avez cherché: once (Anglais - Latin)

once only
once only

once human
semel hominum

you only live once
omni tempore comitem

insemel at once;
insemel

once in a lifetime
sua

once there, but also
non solum autem meliorem

once a time-consuming
olim tempore homo perla edax

im not what i once was
i am not quod ego quondam fuit

either once or twice,
aut iterum

protinam immediately, at once;
protinam

i am not what i once was
i am not quod ego quondam fuit

once a fool, always a fool
semel stultus, stultus semper

once the ground looks phenici
olim

you only die once, you live everyday
tu tantum vivere quotidie semel mori

something once lost will never return
quod semel amissa non revertetur

porcetra, porcetrae once-littered sow;
porcetra

univiratus, univirata, univiratum married but once;
univirata

univira, univirae one-husband woman; woman married only once;
univirae