A.D. Anno Domini
(in the year of the Lord)
A.M. ante meridiem
(before noon)
etc. et cetera
(and so forth)
e.g. exempli
gratia (for the sake of an example, or, for example)
i.e. id est
(that is)
N.B. Nota
Bene (note well)
op. cit. opus
citandum (work cited before)
P.M. post
meridiem (after noon)
P.S. post
scriptum (post script or literally, written after)
pro tem pro
tempore (for a time, temporarily)
Q.E.D. quod
erat demonstrandum (that which was demonstrated)
SPQR Senatus Populusque
Romanus (the Roman Senate and People)
vs. versus against
c, ca circa (about)
ibid ibidem (in
the same place)
cf confer (compare)