A baculo(Latin: by means of the rod [with a big stick]). Has the meaning of using a threat of force instead of logic.
A barba stulti discit tonsor. A barba stolidi discunt tondere novelli. A barber learns to shave by shaving fools.
A bene placito - At one's pleasure
A bonis bona disce. Keep good men’s company and you shall be of their number.
A bove majori discit arare minor.(Latin: From the older ox, the younger learns to plow). How can the foal amble, when the horse and mare trot?
A cane non magno saepe tenetur aper.A boar is often held by a not so large dog. A small leak will sink a great ship. -Ovid
A capite ad calcemFrom head to heel. (Latin: from head to heel; thoroughly). Equivalent to “from top to bottom”.
A cappella - In church [style] - i.e. Vocal music only
A communi observantia non est recedendum.There should be no departure from common observance or usage.
A coena ne bibe, aut si id admonet sitis, sume humidum aliquid, et frigidiusculum, aut perpusillum tenuis potiunculae. Don't drink right after dinner, or if your thirst nags you, take something moist and a little chilled, or a very small bit of a diluted drink.
A contrario - From a contrary position
A cruce salus - From the cross comes salvation.(Latin: Salvation comes from the cross). Used in the Roman Catholic Church to mean that salvation comes from a personal commitment to the teachings of Christianity
A Deo et Rege(Latin: from God and the King). Some monarchs saw themselves as direct representatives of God on earth, so documents issued by them were often signed a Deo et Rege.
A teneris consuescere multum est.Best to bend while it is a twig.
A verbis ad verbera. (Latin: from words to blows). Also translated as, “One thing leads to another.”
A verbis legis non est recedendumYou must not vary the words of a statute. From the words of the law there is not any departure
A spe in spem(Latin: from hope to hope).
Ab absurdo from the absurd (establishing the validity of your argument by pointing out the absurdity of your opponent's position)
Ab aeterno from eternity.
Ab aeterno ordita sum et ex antiquis antequam terra fieret. I was set up from eternity, and of old, before the earth was made.
Ab alio expectes, alteri quod feceris. You shall have as good as you bring. Expect (the same treatment from others) that you give to them. Publilius Syrus As you would that men should do to you, do you also to them in like manner.” From the Latin Vulgate, Luke 6:31; which is a Latin version of the Bible produced by Saint Jerome in the 4th century. From Latin vulgata editio, “edition made public, edition for ordinary people” a version used by the Roman Catholic Church.
Ab amante lacrimis redimas iracundiam. Tears may buy off a lover's wrath.
Ab amico reconciliato cave. Reconciled friend is a double enemy.
Ab asino lanam quaerere. Ab asino lanam petere.To fish for strawberries in the bottom of the sea.
Ab equo ad asinum. Ab equis ad asinos. Out of God's blessing into the warm sun.
Ab esse ad posse “From being to knowing" from the existence of things one can make sure of their possibilities.
Ab extra From without.
Ab homine homini cottidianum periculum. A man constantly faces up to denger from a man Seneca.
Ab imo pectore - From the bottom of the chest (from the heart)
Ab incunabilis From the cradle.
Ab inimicis possum mihi ipsi cavere, ab amicis vero non. Defend me God from my friends; I can defend myself from my enemies.
Ab initio From the beginning.
Ab intra from within
Ab inope nunquam spectes. You can't make bricks without straw.
Ab Iove principium Let's start with the most important
Ab iratoliterally, “from an angry man”; unfair, unprovoked. Any action taken ab irato is to be understood as arising from anger rather than reason, and responses to such actions should be weighed carefully by reasonable people.
Ab origine From the origin or commencement.
Ab ovo From the egg; from the very beginning.
Ab ovo usque ad mala (lit., from the egg to the apples, a term borrowed from Roman banquets, which began with eggs and ended with fruit), From beginning to end; from first to last.