Etymologie, Etimología, Étymologie, Etimologia, Etymology, (griech.) etymología, (lat.) etymologia, (esper.) etimologio
UK Vereinigtes Königreich Großbritannien und Nordirland, Reino Unido de Gran Bretaña e Irlanda del Norte, Royaume-Uni de Grande-Bretagne et d'Irlande du Nord, Regno Unito di Gran Bretagna e Irlanda del Nord, United Kingdom of Great Britain and Northern Ireland, (esper.) Britujo
Abkürzung, Abreviatura, Abréviation, Abbreviazione, Abbreviation, (esper.) mallongigoj

Abbreviation (W3)

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I. Classical Abbreviations. The following list contains a selection from the abbreviations that occur in the writings and inscriptions of the Romans.
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• ABBREVIATION MARK, ARMENIAN U+055F
• ABBREVIATION MARK, SYRIAC U+070F
• ABBREVIATION SIGN, DEVANAGARI U+0970
• Abbreviations, Squared Latin U+3371

Definition of Abbreviations, prescription
A prescription, as is well known, is a physician's order for the preparation and administration of a drug or device for a patient. What may be less well known is that a prescription has several parts:
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Limericks on abbreviation

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There are four main kinds of abbreviations: shortenings, contractions, initialisms, and acronyms.
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Als "Abbreviation" (lat. "abbreviatio": "Abkürzung") bezeichnet man in der Zoologie die Verkürzung der Individualentwicklung eines Individuums durch den Wegfall einzelner Entwicklungsstufen. Besonders bekannt ist in diesem Kontext die "Neotenie" oder auch "Fetalisation" einzelner Schwanzlurcharten wie etwa dem Axolotl. Diese behalten lebenslang Merkmale der Larvalstadien wie etwa die äußeren Kiemen, werden jedoch in dieser Entwicklungsstufe geschlechtsreif. Das Gegenteil der "Abbreviation" stellt die "Prolongation" dar.

"ASYE" - "Acronyms Selected for Your Enjoyment"

Perhaps it is our acquired behavioural bias towards haste that has caused it, but there is certainly something in the modern mind which is attracted to abbreviations, acronyms, and initialisms.
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Acronym, -nym, Laser, Radar, snafu (W3)

An acronym is a word derived from the initial letters or groups of letters of several other words.

Popular examples are:
"Laser", from "Light Amplification by Stimulated Emission of Radiation",
"Radar, from "RAdio Detecting And Ranging" or
"snafu", which should politely be rendered as "Situation Normal, All Fouled Up".

The word "acronym" itself derives from the Greek words "akros" = "the highest", "the most outer" and "onyma" = "name".

As wartime production of names using initials reached an all-time high, it was high time to give a name to the growing arsenal of alphabetic abbreviations. That need was met in a note in the February 1943 issue of American Notes and Queries: "Your correspondent who asks about words made up of the initial letters or syllables of other words may be interested in knowing that I have seen such words called by the name "acronym", which is useful, and clear to anyone who knows a little Greek.

æt. (W3)

Castor (W3)

CB-Funk (W3)

dictionary.com - ToAiE
The Oldest Abbreviations In English

• LOL
• WTF
• OMG
• X
• XXX
• XXXX
• XOXO
• XXXX
• RSVP
• POTUS
• FLOTUS
• SCOTUS
• OG
• I.e.
• E.g.
• A.M.
• P.M.
• awol
• etc.
• Snafu
• YOLO

DICwillynilly - Rose

E.T.A. (W3)

Radar (W3)

viz. (W3)

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... "viz." ("videlicet", "namely" it acquired the final "z" through the same fascinating process by which "oz." for "ounce" acquired its "z" (both "z"s were originally ampersand-like ligatures for "et", even though they indicated the Latin suffix "-que")), q.v. ("quod vide", "see which"), ibid. ("ibidem", "same [source] as preceding [footnote]"), "op. cit." ("opere citato", "same work"), "pass." ("passim", "scattered [references] throughout"), "et al." ("et alia", "and others"). (Not to be confused with "inter alia", "among other things.")
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willy-nilly (W3)

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Shakespeare was familiar with, and apparently quite fond of, the expression in various forms. He used it in The Taming of the Shrew, 1596:
Petruchio: [To Katharina]
Thus in plain terms: your father hath consented
That you shall be my wife; your dowry 'greed on;
And, Will you, nill you, I will marry you.
[I.e. I will marry you, whether you like it or not.]

and again, in Hamlet:

First Clown: Give me leave. Here lies the water; good: here stands the man; good; if the man go to this water, and drown himself, it is, will he, nill he, he goes.
[I.e. If a man chooses to drown he enters the water, if he chooses not, he leaves.]
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willynilly (W3)