MO = Modus operandi - Mode of operation (Legal term - Referring the manner a criminal commits a crime )
MSc = Magister in Scientiis - Master of Science (University Degree )
n.b. = Nota bene - Note well (Grammatical term - Indicates to pay attention )
NDSMD = Non Draco Sit Mihi Dux - Do not let the dragon (devil) be my guide (Ecclesiastical term - Initials on the back of the Cross of San Benito Abad )
NN = Non Nominatus - Unnamed (Legal term - unidentified person )
NPO = Nil per os - Nothing by mouth (Instruction to avoid drink and food before a medical procedure )
NSMV = Numquam Suade Mihi Vana - You will never will persuade me with vain things (Ecclesiastical term - Inscribed on the back of the Cross of San Benito Abad, which when spoken together are a powerful exorcism )
O.P. = Ordinis Praedicatoris - O.P - Order of Preachers (Dominicans )
O.S.A. = Ordinis San Agustinus - Order of Saint Augustine (Augustinians )
O.S.B. = Ordinis San Benitus - Order of Saint Benedict (Benedictines )
O.S.F. = Ordinis San Franciscus - Order of Saint Francis (Franciscans )
o.s.p. = Obiit sine prole - He died without descendants - (Expression that is used in genealogical works )
PD = Post Data - After the date (Compare with Post Scriptum - Used in correspondence when a comment is added on a different day )
PhD = Philosophiae Doctoris - Doctor of Philosophy (University Degree - highest academic degree in any field, not restricted to only philosophy )
PM = Post Meridiem - Past Meridian (Afternoon after 12:00 )
P.M. or Pont. Max. = Pontifex Maximus - Supreme Pontiff (Ecclesiastical Term - Refers to the Pope - Often )
PS = Post Scriptum - Written after (Compare with Post Data - Used in correspondence when a comment is added later on the same day )
QED = Quod erat demonstrandum - Which was to be demonstrated (Mathematical term - traditionally placed at the end of proofs )
QEF = Quod erat faciendum - Which was to be shown (Mathematical term - traditionally placed at the end of a solution )
q.G.h. = Quid Gloriam habet - Be in glory (Epitaph - Equivalent to RIP )
Q.S.D = Quis ut Deus? - Who is like God? (Motto of angels led by St. Michael )
RIP = Requiescat In Pace - Rest in Peace (Inscription on tombs, often )
SC = Societas Castulonensis - Castulo Mining Company (Company authorized by Rome for the exploitation of silver and lead mines Linares District (Castulo) in ancient Hispania - The SC brand has appeared in numerous coins minted in the area between I bC to I aD )
s.d. = Salutem Dicit - Wishing health (Salutation used by Cicero, often )
SI = Societatis Iesus - Society of Jesus (Jesuits - Often )
