( pr. " in secula seculorum " ) Latin expression which means " for centuries of 34 centuries. It also said " per in secula seculorum " which led to misuse as " per secula... " It is not so correct. Another older form of latin wrote it as " in saecula saeculorum " but the slur '' ae '' no longer used in Spanish and ended up replacing with '' ae '' for the archaic latin.