Per angusta ad augusta—Through hardship to 25 triumph. M.
Per annum—By the year; yearly.
Per ardua liberi—Free through difficulty. M.
Per aspera ad astra—over rough paths to the stars. M.
Per contra—On the other hand.
Per Deum et ferrum obtinui—I have obtained 30 it by God and my sword. M.
Per fas et nefas—By right ways and by wrong.
Per il suo contrario—By its opposite. M.
Per incuriam—Through carelessness.
Per mare per terram—By sea and land. M.