Either meaning

ēthər, īthər
One or the other (of two)

Use either hand.

adjective
9
0
Any more than the other; also.

If you don't go, I won't either.

adverb
7
2
(conjunctive, after a negative) As well.

I don't like him and I don't like her either.

adverb
4
0
The first element of the pair of disjunctive correlatives either … or, implying a choice of alternatives [either go or stay]

Bring either cookies, doughnuts, or some other kind of pastry.

conjunction
4
1
Likewise; also. Used as an intensive following negative statements.

If you don't order a dessert, I won't either.

adverb
3
0
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Each (of two); the one and the other.

He had a tool in either hand.

adjective
1
0
One or the other (of two)
pronoun
1
0
Certainly; indeed.

“It's mine.” “It isn't either!”

adverb
1
0
Each of two. [from 9th c.]
determiner
1
0
One or the other of two. [from 14th c.]
determiner
1
0
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(coordinating) Used before two or more not necessarily exclusive possibilities separated by "or" or sometimes by a comma.

You'll either be early, late, or on time.

determiner
0
0
Francis Bacon (1561-1626)

Scarce a palm of ground could be gotten by either of the three.

pronoun
0
0
1590, Edmund Spenser, The Faerie Queene, III.i.

And either vowd with all their power and wit, / To let not others honour be defaste […]

pronoun
0
0
Oliver Wendell Holmes, Sr. (1809-1894)

There have been three talkers in Great British, either of whom would illustrate what I say about dogmatists.

pronoun
0
0
One or other of two people or things.
pronoun
0
0
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Introduces the first of two options, the second of which is introduced by "or".

Either you eat your dinner or you go to your room.

conjunction
0
0
The definition of either is one or the other.

An example of either is riding in one of two cars.

adjective
0
1
Either is defined as one or the other.

An example of either is a chocolate chip cookie or a brownie.

pronoun
0
1
Used before the first of two or more coordinates or clauses linked by or:

Either we go now or we remain here forever.

conjunction
0
1
Any one of two; one or the other.

Wear either coat.

adjective
0
1
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One and the other; each.

Rings on either hand.

adjective
0
1
The one or the other.

Which movie do you want to see? Either will be fine.

pronoun
0
2

Origin of either

  • Middle English from Old English ǣther, ǣghwæther kwo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Old English ǣġhwæþer, from Proto-Germanic, ultimately corresponding to ay + whether. Akin to Old Saxon eogihwethar, iahwethar; Old Dutch *iogewether, *iowether, *iother (Dutch ieder); Old High German eogihwedar, iegihweder, ieweder (German jeder).

    From Wiktionary