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in the U.S.
since 1880
Last Name
in the U.S.
in 2010
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Meaning and Origin

What does the name Alum mean? Find out below.

Origin and Meaning of Alum

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Webster's Unabridged Dictionary
noun Al"um
A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.

Note: ☞ Common alum is the double sulphate of aluminium and potassium. It is white, transparent, very astringent, and crystallizes easily in octahedrons. The term is extended so as to include other double sulphates similar to alum in formula.

Etymology: OE. alum alom, OF. alum, F. alun, fr. L. alumen alum

verb Al"um
To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.
Other Dictionary Sources
  1. A double sulphate of aluminum and potassium that is used as an astringent (among other things)
  2. A person who has received a degree from a school (high school or college or university)
  3. A white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
  4. A white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum

From Anglo-Norman alum, alun et al., Middle French alun, from Latin alūmen.

  1. An astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K2SO4.Al2(SO4)3.24H2O). [from 14th c.]
  2. (chemistry) Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent cations. [from 17th c.]

From alumnus and alumna, by removal of the non-native, gender-specific endings.

  1. (US) A graduate of a university or other institution.

    alum was also found in the following language(s): Latin, Latvian, and Old French

    Where is the name Alum popular?

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    Popularity of Alum as a last name

    The map shows the absolute popularity of the name Alum as a last name in each of the states. See other popular names in Massachusetts, Illinois, or New York.

    Fun Facts about the name Alum

    • When was the first name Alum first recorded in the United States? The oldest recorded birth by the Social Security Administration for the name Alum is Wednesday, March 24th, 1909.
    • How unique is the name Alum? From 1880 to 2017 less than 5 people per year have been born with the first name Alum. Hoorah! You are a unique individual.
    • Weird things about the name Alum: Your name in reverse order is Mula. A random rearrangement of the letters in your name (anagram) will give Ulam. How do you pronounce that?

    What Alums Have Visited This Page?

    Past life for Alum born Feb 7, 1996

    I do not know how you feel about it, but you were a female in your last earthly incarnation. You were born somewhere around the territory of Northern New Zealand approximately on 1400. Your profession was seaman, dealer, businessman, and broker.

    Your psychological profile shows you had a natural talent of psychologist and knew how to use the opportunities. Cold-blooded and calm in any situation. Your problem - to learn to love and to trust the Universe. You are bound to think, study, reflect and develop inner wisdom.

    Name poster for Alum

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    • Sources:
    • U.S. Census Bureau: Frequently Occurring Surnames from the Census 2000 (public domain).
    • 1913 Webster's Revised Unabridged Dictionary via the Collaborative International Dictionary of English (License)
    • Other Dictionary Sources: WordNet 3.1 Copyright 2006 by Princeton University (License).
    • Wiktionary: Titles and License.