M

macellator = butcher
magis = more
magister = master
magnus = large, great
maii = of May
major = greater, older
majordomus = somebody who keeps a house (and the staff therein) in order of the absent owner of the house (castle or mansion)
majorennis = of legal age
majoritatatis = of legal age, majority
male = badly
malus = bad, evil
mane = in the morning
manu propria = (signed) by one's own hand
manuarius = daily worker; unqualified/unskilled worker
manus = hand, band
maris = of a male, man
marita (f); maritus (m) = married for female/ie wife; married for male/ie husband
mariti = marriage, married couple
martii = of March
martis, dies = Tuesday
mas. = male, man
masculinus = male
mater (matris) = mother
matertera = aunt, mother's sister
matr.(-ina) = godmother
matre = mother; parish
matrica, matr. = register, record book, church registers / KB's
matricula baptizatorum = baptism register
matrimonium = marriage
matrina = godmother
matruelis = cousin on mother's side
me = me
mecator = merchant, shop-keeper, dealer
mecum = with me
medicus = doctor
medii anii = medium in Latin is middle, at center, half. "medii anii" is "of half a year"; "unius et medii anii" is "of one and half a year"
mendicus = beggar
mense = in the month (of)
mensis = month ( annus, mensis, et dies year, month, and day )
merc.(ator) = salesman, store owner
mercator(es) = merchant(s)
mercenarius = daily paid worker, day laborer, servant
mercurii, dies = Wednesday
meretrix (meretricis) = harlot, prostitute
meridies = noon
meus = mine
mgstor. (abbreviation for magister) = master, foreman
miles = soldier/military
miles (militis) = soldier, knight
miles ablicentiatus = off duty/reservist soldier
miles ablicentiatus gregar. = active soldier, on leave just for the wedding
miles greg. reserv. = military reservist
miles gregarius = ordinary soldier
mille = thousand
millesimus = thousandth
min.(-ister) = priest, minister
minorennis = not of legal age
minoritatis = of less than legal age, minority
minus = less
mixtum matrimoniu = mixed race marriage
modo = lately, presently, now
modus = manner, way
Moguntiensi = from the Mainz district
mola = mill [stone]
mola ventosa = mola is mill stone; ventosa is cupping glass [ie wind mill?]
molitor = miller
molitorissa = miller's wife; widow of a flour miller
molitrix = miller's wife
moneta = money
mons (montis) = mountain
morbus sive aliud genus mortis = disease or other cause of death
more novo = (according to) the new style (of dating)
more vetere = (according to) the old style (of dating)
moritur = he/she died
mors, mortis = death
mortis = of death
mortis causa = cause of death
mortis genus = means of death
mortua nata (f.), mortuus natus (m.) = stillborn
mortus = dead
mortuus = death
mortuus est = he died
mos (moris) = custom, manner
mulier = woman, wife
multus = many
munitus = fortified, provided
murarius = bricklayer, stone mason
mutuus = mutual, common

DISEASES

mania = insanity
marasmus = weakness, wasting away, deterioration; malnutrition occurring in infants and young children, caused by an insufficient intake of calories or protein and characterized by thinness, dry skin, poor muscle development, and irritability. Specific causes were associated with specific ages: in infants under 12 months old, the causes were believed to be unsuitable food, chronic vomiting, chronic diarrhea, and inherited syphilis. Between 1-3 years, marasmus was associated with rickets or cancer. After the age of 3 years, caseous (cheeselike) enlargement of the mesenteric glands (located in the peritoneal fold attaching the small intestine to the body wall) became a given cause of wasting. After the 6 year, chronic pulmonary tuberculosis appeared to be the major cause. Marasmus is now considered to be related to kwashiorkor, a severe protein deficiency
marasmus iuvenilis = marasmus/weakness; progressive wasting away of body, like malnutrition; malnutrition occurring in infants and young children caused by an insufficient intake of food. This is starvation rather than disease caused by a specific deficiency in the diet like insufficient protein or vitamin deficiency. In the past it may mean failure to thrive or any wasting illness such as tuberculosis or cancer;
iuvenis/young man, young woman, young person; so, "child weakness"
marasmus senilis = weakness/weak with(due) age
meningitis = inflammation of the three membranes covering the brain and spinal cord, caused by a bacterial or viral infection and characterized high fever, severe headache, and stiff neck or back muscles.
metritis = inflammation of uterus or purulent vaginal discharge
miasma = poisonous vapors thought to infect the air
mielitis = inflammation of the spine
miocarditis = inflammation of heart muscles
morbili = measles
morbus = disease (often meant "cause of death"); illness. When applied to a particular disease, morbus was associated with some qualifying adjective or noun, indicating the nature or seat of such disease. Examples: morbus cordis/heart disease; morbus caducus/epilepsy or failing sickness
morbus comitialis = epilepsy
morbus hungaricus = epidemic typhus