alter- +

(Latin: different, other, another; to change)

Ab alio expectes, alteri quod feceris.
Expect from others what you have done to them.

Prout vultis ut faciant vobis homines, et vos facite illis similiter, "As you would that men should do to you, do you also to them in like manner." From Luke 6:31 of the Latin Vulgate, a Latin version of the Bible produced by Saint Jerome in the 4th century.

From Latin vulgata editio, "an edition made public" or "an edition for ordinary people" which is a version used by the Roman Catholic Church.

adulterant
1. Any substance that adulterates or lessens the purity or effectiveness of a substance.
2. That which makes something impure or corrupt by adding other inferior materials.
adulterants
Chemical impurities or substances that by law do not belong in a food, pesticide, or other substance. Some are added intentionally to lower the manufacturing cost of the product or to modify its characteristics in a deceptive way.
adulterate
1. To corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones; mixed with impurities.
2. To adulterate, to debase, to doctor. These verbs mean to make impure or inferior by adding foreign substances to something: to adulterate coffee with ground acorns; to have silver debased with copper; having doctored the wine with water; to use rag paper loaded with wood fiber.
3. Debased by the admixture of a foreign substance; adulterated; spurious.
4. Tainted with adultery.
5. To commit adultery.
6. To corrupt, debase, or make impure by an admixture of a foreign or a baser substance; as, to adulterate food, drink, drugs, coin, etc.
7. To defile by adultery.

Etymologically, to make impure by admixture; to corrupt from Latin adulteratus, past participle of adulterare, "to falsify, corrupt; to corrupt a woman; to commit adultery", dissimilated from ad- alterare, literally "to change, alter", from ad- and alterare, "to change, alter".

adulteration
1. The act of adulterating (especially the illicit substitution of one substance for another).
2. Being mixed with extraneous material; the product of adultering.
3. The act of adulterating; especially, the illicit substitution of one substance for another.
adulterer
Someone who commits adultery or fornication (sexual intercourse between partners who are not married to each other).

The word fornication had a less than socially respectable beginning suitable to what has long been the low moral status of the act to which it refers. From Old French fornication, from Late Latin fornicationem (fornicatio), from fornicari "fornicate", from Latin fornix, "brothel"; originally "arch, vaulted chamber"; from fornus "oven of arched or domed shape".

Roman prostitutes commonly solicited customers from under the arches of certain buildings. So, fornication means, "voluntary sex between an unmarried man and an unmarried woman"; extended in the Bible as adultery.

adulteress
1. A woman who commits adultery.
2. A female adulterer
adulterine
1. Characterized by adulteration (to make impure, spurious, or inferior by adding extraneous or improper ingredients); spurious.
2. Illegal, unauthorized by law.
3. Born of adultery (voluntary sexual intercourse between a married person and a partner other than the lawful spouse).
adulterous
1. Characterized by adultery; as, "An adulterous relationship."
2. Not faithful to a spouse or lover; as, "Adulterous husbands and wives".
3. Relating to, inclined to, or marked by adultery.
4. Characterized by adultery; "an adulterous relationship"; "extramarital affairs"; "the extracurricular activities of a philandering husband".
adultery
1. Extramarital sex that willfully and maliciously interferes with marriage relations.
2. Voluntary sexual intercourse between a married person and someone other than his or her lawful spouse.
3. Historically, an act of conjugal infidelity; an adulterer was a man who had illicit intercourse with a married or a betrothed woman, and such a woman was an adulteress. Intercourse between a married man and an unmarried woman was known as fornication.
altar, alter
altar (AWL tur) (noun)
A stand or platform used in a place of worship: "The minister placed the Bible on the altar as he read passages to the congregation."

"Catherine knelt at the altar to pray."

alter (ALW tur) (verb)
1. To change, transform, make different, modify: "The blond wig seemed to completely alter Jane's appearance. She said she would also alter her dress."
2. To castrate or to spay an animal; such as, a cat or a dog: "The family dog was taken to the animal center so the vet could alter him."

The minister wanted to alter the church altar before the next worship service.

alter (ALW tur)
1. To change, transform, make different, amend, modify, vary: "The blonde wig completely altered the girl's appearance and she said that she would also alter her dress."

"When the woman lost weight, she had all of her clothes altered to fit her new figure."

2. To castrate or spay an animal; such as, a cat or a dog: "The family dog was taken to the vet to be altered."
alter ego
1. Another side of oneself; a second self; another aspect of one's self: "The characters Dr. Jekyll and Mr. Hyde were alter egos in a literary tale of horror."
2. An intimate friend or a constant companion; an inseparable friend.
3. A very close and trusted friend who seems almost a part of yourself.
4. A second self; a perfect substitute or deputy: "His assistant manager acts as his alter ego when he is not in the office."
Alter ipse amicus.
A friend is a second self.
alterable (adjective)
Capable of being changed.

Inter-related cross references, directly or indirectly, involving word units meaning "another, other, different, alternating, varied, changing": ali-; allo-; allelo-; hetero-; mut-; poikilo-; reciproc-; vari-.