One who performs calculations with an abacus, an arithmetician. …

Father! -- addressed to God & to an abbot. …

(a) The office, estate, or jurisdiction of an abbot; (b) an abbey. …

Abbess. …

Abbess. …

(a) The superior of a convent of monks having the status of an abbey; (b) = abba, q.v. …

A spelling book or primer. …

Incitement to evil; urging. …

The weaning (of a child). …

The aorta. …

Abortion, stillbirth. …

Southernwood (Artemisia abrotanum). …

Surg. (a) The act or process of cleansing a wound or sore, the removal of pus or other impurities by means of cleansing medicines; (b) a detergent or cleansing property. …

Withdrawal from worldly affairs and interests, asceticism. …

Med. A gum made from the juice of green plums or sloes (used as an astringent, a restringent, or a repercussive). …

(a) An accessory to a crime; (b) that which is subordinate to something else. …

(a) The deadly sin of Sloth, a disinclination to do anything good; (b) a spell of lethargy or apathy. …

Armpit. …

Sorrel (Rumex acetosa). …

A cleric who has taken the highest of the four minor orders, an acolyte; also, the order itself. …

See quot. …

The root of the plant Iris pseudacorus. …

Medicines for sharpening or improving (the hearing). …

Milfoil, yarrow (Achillea millefolium). …

(a) A kind of precious stone; diamond; (b) adamant; fig. something indestructible and enduring, something impenetrable. …

A medicinal herb; ?euphrasy. …

(a) Supplementary; (b) a supplement. …

The action of annulling royal grants, annulment; act of adnullation, a law which declares the royal grants (of land, offices, privileges, etc.) of a certain reign to be null and void. …

A Hebrew name for God. …

Attainment (of salvation, merit); peple of adquisicioun, the elect. …

Some alchemical substance. …

Something adventitious. …

(a) The Advent season, usually extending through the four Sundays immediately preceding Christmas; (b) advent Sondai, the first Sunday of Advent. …

Law (a) the activity of a professional pleader in courts of law, advocacy; (b) the advocacy performed by a prosecutor, a charge or accusation; (c) theol. intercession or advocacy on behalf of a sinner……

The patronage of a church, including the duty of protecting the church and the privilege of presenting nominees to the benefice, advowson; right of advocacion. …

Divination by air, aeromancy. …

(a) A medicinal plant; ramson (Allium ursinum); ?also, other species of Allium; flour of affodil, poudre of affodil; (b) ?asphodel; (c) ?rhododaphne. …

(a) Nimbleness of body, swiftness; (b) one of the four gifts or dowries of Christ's body and of the resurrected body of man: the ability to travel to any place without delay and without the need of a……

(a) The Hagiographa of Hebrew Scripture (comprising the Psalms, Proverbs, Daniel, etc.), as distinct from the Laws and the Prophets; (b) Holy Scripture. …

(a) Lamb of God [i.e. Jesus]; a figure of a lamb used as an emblem of Jesus; (b) a part of the Mass beginning with the words 'Agnus Dei'. …

See quot. …

Pharm. A compound ointment. …

(a) The stone alabaster; (b) an alabaster container for chrism or ointment; (c) a medicament containing powdered alabaster. …

A reddish or violet precious stone, prob. some variety of garnet. …

The star Spica. …

A gourd-shaped vessel for making distillates, the so-called 'waters', a still. …

An electuary containing lignaloes. …

A disease of the skin and flesh characterized by local lesions; blak albaras, whit albaras. …

A mineral reputed to be unquenchable when set on fire; ?the fiber asbestos as used for the wick of an ever-burning lamp; prob. confused with alabaster in quot. c1450. …

Alch. Whitening. …

A fine powder. …

Some kind of canker or ulceration in the mouth; ?thrush. [Cp. Avicenna Canon 3.6.2.13 (ed. 1564, vol.1, p 585).] …

bal (pelote) of aldaroun, trocisc (of) aldaroun, a kind of medicinal pellet or tablet of corrosive property. …

The star Aldebaran. …

Astron. A star, or pair of stars, marking one of the forepaws of the old constellation Leo. [For opinions as to identification, see F. N. Robinson's ed. of Chaucer, p.824.] …

(a) A corridor or hallway; a covered walk; (b) an aisle (of a temple or church); (c) a balustrade. …

sal alembroth, one of the 'salts' of the alchemists. …

The flaring sides or 'wings' (of the nostrils). …

confeccioun of alfilude, a compound medicine containing steel. …

A skin disease. …

A skin disease. …

(a) The surgical treatment of fractures and dislocations, bone-setting; (b) a fracture or dislocation. …

The star Algol. …

The star Procyon. …

Sirius, the Dog-star. …

The star Capella. …

Med. A kind of polyp or nasal ulcer. …

A plant of some kind said to be used medicinally and probably as an aromatic herb, likely identified with some member of the group comprising hyssop, marjoram, and thyme. …

The sea eagle or fish hawk [for other medieval opinions see first quot.]. …

(a) Alexanders, horse parsley (Smyrnium olusatrum); (b) alisandre more, alisandre rot; alisandre sed. …

An alkaline substance obtained from the calcined ashes of plants: soda (from sea plants), potash (from land plants); sal alkali(n. …

The medieval science of alchemy. [The transmutation of base metals into silver and gold & the search for the 'elixir' and the 'quintessence' were its chief aims; the principles of 'natural' and……

An alchemist. …

The plant alkanet Alkanna tinctoria or its root [used as a styptic and for coloring]. …

The ankle-bone or astragalus. …

The Koran. …

The winter cherry (Physalis alkekengi). …

Mineral pitch, native asphalt. …

Sulphur. …

An inducement. …

Aleph, the first letter of the Hebrew alphabet. …

(a) Law A formal declaration or deposition; (b) the citing of authorities (esp. the Scriptures) in support of a doctrine or opinion; (c) the expression of an opinion or objection; assertion……

The Hebrew phrase for 'praise the Lord!', sung or spoken. …

Mitigation, relief. …

A revolving rule, or index, attached to the back of the astrolabe. …

Law Authorization. …

Law A writ authorizing payment (as of a pension or allowance); writ allocate. …

(a) Falling of the hair; (b) a form of leprosy. …

The name given to the great astronomical treatise of Ptolemy; also applied to other astron. works. …

The star Arcturus. …

A set of astronomical tables. …

A place for storing or safekeeping: (a) a pantry or butlery; a safe for food; also said of the stomach [quot. a1398]; (b) a closet or wardrobe; (c) a cabinet, chest, or strongbox, as for valuables……

(a) Anything given to relieve those in poverty or distress, any charitable gift or offering, alms; an allotment of alms; eten almes, be dependent on alms; gan on almes, liven bi, of almes, live on……

Small circles of the celestial sphere parallel to the horizon, parallels of altitude; on the astrolabe: circles marked on the plate under the rete indicating such parallels. …

A pointer on the rete of the astrolabe. …

Aloe: (a) the tree; (b) the juice or resin of the tree, aloes; (c) med. the drug aloes; aloe caballinum (cicotrine, epatik). …

(a) A covered passageway or walk, as on the rampart or along the parapet of a castle; an arcade, aisle, or promenade; a gallery or balcony; (b) the barrier or railing (of a balcony). …

The star Alphecca, or Gemma (in Corona Borealis). …

See quot. …

The science of measuring altitude. …