Anno Domini (A.D.) - In the year of the Lord Ad infinitum - To infinity without end Ad nauseum - To the point of making one sick Carpe diem - Seize the day. (opportunity) (Horace) E pluribus unum - From many, one (motto of the USA) Ex post facto - After the fact, or Retrospectively Ex nilhilo- Out of nothing Modus operandi (m.o.) - Way of operating Semper fidelis - Always faithful Sic semper tyrannis - Thus always to tyrants Sub sole nihil novi est - There's nothing new under the sun