ad-

(Latin: prefix; to, toward, a direction toward, addition to, near, at; and changes to: ac-, af-, ag-, al-, an-, ap-, aq-, ar-, as-, at- when ad- is combined with certain words that begin with the letters c, f, g, l, n, p, q, r, s, and t)

The Latin element ad carries the idea of "in the direction of" and combines with many Latin words and roots to make common English words.

The form ad- appears in this form before a vowel and before the consonants d, h, j, m, and v. It is simplified to a- before sc, sp and st.

Before c, f, g, l, n, p, q, r, s, and t; ad- is changed to ac-, af-, ag-, al-, an-, ap-, aq-, ar-, as-, and at-.

In other words, the d of ad usually changes into the same letter as the first letter of the following root or word when it is a consonant: ad-fix becomes affix, and ad-sign becomes assign; therefore, making a double consonant.

Another example includes: attract as with ad-tract (drawn towards); so it has a double t. On the other hand when ad- precedes a vowel, as with adapt, it is simply ad-apt, with one d. For the same reason, there is only one d in adore and adumbrate, because ad- has combined with orare and umbra each of which starts with a vowel.

So, remember: since these Latin words begin with vowels and not consonants, the d of ad does not double as shown in the previous examples.

ad locum; ad loc.
At the place or to the place.

At some place which is indicated.

ad majorem dei gloriam; A.M.D.G.
To [or for] the greater glory of God.

Motto used by the Jesuit order (Society of Jesuits).

Sometimes the full expression is cited as the rationale for actions taken by Christians.

ad manum (Latin phrase)
Translation: "At hand."
ad modum
Toward the manner of.

After the manner of.

ad multos annos
For many years.
ad nauseam (adverb) (not comparable)
To a sickening, ridiculous, or disgusting degree: Usually a reference to something that goes on and on and on, ad nauseam (to seasickness) or for some people, endlessly or forever.

Ad nauseam suggests that certain actions, speeches, discussions, etc. have reached a point at which they are almost more than anyone can bear!

Henry bragged ad nauseam about the one home run he hit while playing baseball.

Relating to the point of disgust or revulsion.
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Pertaining to a sickened or a disgusted feeling.
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A reference of the abhorrence of something.
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ad oculos
To the eyes.

Before one's eyes.

ad partes dolentes; ad part. dolent
To the painful or aching parts.
ad patres
To the [fore]fathers; to the dead.

To the ancestors or to the dead. To go ad patres is to die; to send someone ad patres is to kill that person.

Ad perpetuam rei memoriam. (Latin statement)
Translation: "For the perpetual remembrance of the thing."

These words are traditionally used to open papal bulls.

ad populum
To the people.

Ad populum is intended for the ears of all the people, not just a limited or special few.

Ad praesens ova cras pullis sunt meliora.
Eggs today are better than chickens tomorrow.

Like the English proverb: "A bird in the hand is worth two in the bush." It is considered more important to hold on to what one has than to risk everything in speculation.

ad quem
For which; to whom.

Opposite of a quo (from which).

ad quod damnum
To what damage.

A legal phrase used for assessing damages relating to privately owned land that is taken for public use. The name of a writ formerly issuing from the English chancery, commanding the sheriff to make an inquiry "to what damage" a specified act, if done, will tend.

This writ is of ancient origin, and could be issued as a writ of right when a landowner was dissatisfied with the assessment of damages as a result of a condemnation commission.

ad referendum (ahd reh feh REHN duum) (s) (noun); ad referenda (or) ad referendums
Translation: "For further consideration" which literally translates as "for referring" and is a diplomatic term: Diplomats who accept a proposal for their governments ad referendum indicate by their actions that final acceptance is dependent on the approval of the diplomats' governments.

The legal phrase ad referendum is also used for assessing damages relating to privately owned land that is taken for public use.

This writ of ad referendum is of ancient origin, and could have been issued as a writ of right when a landowner was dissatisfied with the assessment of damages to his property as a result of a condemnation commission.