er

[uh, er]
interjection
(used to express or represent a pause, hesitation, uncertainty, etc.).
er, err.
Dictionary.com Unabridged

ER

1.
efficiency report.

Er

Symbol, Chemistry.

-er

1
1.
a suffix used in forming nouns designating persons from the object of their occupation or labor (hatter; tiler; tinner; moonshiner ), or from their place of origin or abode (Icelander; southerner; villager ), or designating either persons or things from some special characteristic or circumstance (six-footer; three-master; teetotaler; fiver; tenner ).
2.
a suffix serving as the regular English formative of agent nouns, being attached to verbs of any origin (bearer; creeper; employer; harvester; teacher; theorizer ).
Compare -ier1, -yer.


Origin:
Middle English -er(e), a coalescence of Old English -ere agentive suffix (cognate with Old High German -āri, Gothic -areis < Germanic *-arjaz (> Slavic *-arĭ) < Latin -ārius -ary) and Old English -ware forming nouns of ethnic or residential orig. (as Rōmware Romans), cognate with Old High German -āri < Germanic *-warioz people

-er

2
a noun suffix occurring in loanwords from French in the Middle English period, most often names of occupations (archer; butcher; butler; carpenter; grocer; mariner; officer ), but also other nouns (corner; danger; primer ). Some historical instances of this suffix, as in banker or gardener, where the base is a recognizable modern English word, are now indistinguishable from denominal formations with -er1, as miller or potter.

Origin:
Middle English < Anglo-French -er, equivalent to Old French -er, -ier < Latin -ārius, -ārium. Compare -ary, -eer, -ier2

-er

3
a termination of nouns denoting action or process: dinner; rejoinder; remainder; trover .

Origin:
< French, orig. infinitive suffix -er, -re

-er

4
a suffix regularly used in forming the comparative degree of adjectives: harder; smaller .

Origin:
Middle English -er(e), -re, Old English -ra, -re; cognate with German -er

-er

5
a suffix regularly used in forming the comparative degree of adverbs: faster .

Origin:
Middle English -er(e), -re, Old English -or; cognate with Old High German -or, German -er

-er

6
a formal element appearing in verbs having frequentative meaning: flicker; flutter; shiver; shudder .

Origin:
Middle English; Old English -r-; cognate with German -(e)r-

-er

7
a suffix that creates informal or jocular mutations of more neutral words, which are typically clipped to a single syllable if polysyllabic, before application of the suffix, and which sometimes undergo other phonetic alterations: bed-sitter; footer; fresher; rugger . Most words formed thus have been limited to English public-school and university slang; few, if any, have become current in North America, with the exception of soccer, which has also lost its earlier informal character.
Compare -ers.


Origin:
probably modeled on nonagentive uses of -er1; said to have first become current in University College, Oxford, 1875–80

E.R.

1
King Edward.

Origin:
< Neo-Latin Edwardus Rex

E.R.

2
Queen Elizabeth.

Origin:
< Neo-Latin Elizabeth Regina

E.R.

3
1.
East Riding (Yorkshire).
2.
East River (New York City).
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
er1 (ə, ɜː)
 
interj
a sound made when hesitating in speech

er2
 
the internet domain name for
Eritrea

Er
 
the chemical symbol for
erbium

ER
 
abbreviation for
1.  (in the US) Emergency Room (in hospitals)
2.  Elizabeth Regina
3.  Eduardus Rex
 
[Latin: Queen Elizabeth]

-er1
 
suffix forming nouns
1.  a person or thing that performs a specified action: reader; decanter; lighter
2.  a person engaged in a profession, occupation, etc: writer; baker; bootlegger
3.  a native or inhabitant of: islander; Londoner; villager
4.  a person or thing having a certain characteristic: newcomer; double-decker; fiver
 
[Old English -ere; related to German -er, Latin -ārius]

-er2
 
suffix
forming the comparative degree of adjectives (deeper, freer, sunnier, etc) and adverbs (faster, slower, etc)
 
[Old English -rd, -re (adj), -or (adv)]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

-er
English agent noun ending, corresponding to L. -or. In native words it represents O.E. -ere (O.Northumbrian also -are) "man who has to do with," from W.Gmc. *-ari (cf. Ger. -er, Swed. -are, Dan. -ere), from P.Gmc. *-arjoz. Some believe this root is identical with, and perhaps a borrowing of, Latin -arius.
In words of Latin origin, verbs derived from pp. stems of Latin ones (including most verbs in -ate) usually take the Latin ending -or, as do Latin verbs that passed through French (e.g. governor), but there are many exceptions (eraser, laborer, promoter, deserter, sailor, bachelor), some of which were conformed from L. to Eng. in late M.E. The use of -or and -ee in legal language (e.g. lessor/lessee) to distinguish actors and recipients of action has given the -or ending a tinge of professionalism, and this makes it useful in doubling words that have both a professional and non-professional sense (e.g. advisor/adviser, conductor/conducter, incubator/incubater, elevator/elevater).

-er
comparative suffix, from O.E. -ra, -re, from P.Gmc. *-izon, *-ozon (cf. Goth. -iza, O.S. -iro, O.N. -ri), originally also with umlaut change in stem, but this was mostly lost in O.E. by historical times and has now vanished (except better and elder).

-er
suffix used to make jocular or familiar formations from common or proper names (soccer being one), first attested 1860s, English schoolboy slang, "Introduced from Rugby School into Oxford University slang, orig. at University College, in Michaelmas Term, 1875" [OED, with unusual precision].

er
as a sound of hesitation or uncertainty, attested from mid-19c.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

Er
The symbol for the element erbium.

ER abbr.
endoplasmic reticulum

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
Er  
The symbol for erbium.
erbium   (ûr'bē-əm)  Pronunciation Key 
Symbol Er
A soft, silvery, metallic element of the lanthanide series. It is used as a neutron absorber in nuclear technology and in light amplification for fiber-optic telecommunications. Atomic number 68; atomic weight 167.26; melting point 1,497°C; boiling point 2,900°C; specific gravity 9.051; valence 3. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
FOLDOC
Computing Dictionary

ER definition


Entity-Relationship

er definition

networking
The country code for Eritrea.
(1999-01-27)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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American Heritage
Abbreviations & Acronyms
Er
erbium
ER
  1. emergency room

  2. endoplasmic reticulum

  3. Eritrea (international vehicle ID)

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Encyclopedia Britannica
Encyclopedia

er

(Er), chemical element, rare-earth metal of the lanthanoid series of the periodic table. Erbium is a grayish silver element that also occurs as a series of pink compounds. It had limited commercial uses until the age of fibre-optic telecommunications, when it became an important constituent of the signal repeaters in long-distance telephone cables.

Learn more about Er with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences for ER
Abby lockhart, a fictional medical doctor in the television series er.
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