confirm

[kuhn-furm]
verb (used with object)
1.
to establish the truth, accuracy, validity, or genuineness of; corroborate; verify: This report confirms my suspicions.
2.
to acknowledge with definite assurance: Did the hotel confirm our room reservation?
3.
to make valid or binding by some formal or legal act; sanction; ratify: to confirm a treaty; to confirm her appointment to the Supreme Court.
4.
to make firm or more firm; add strength to; settle or establish firmly: Their support confirmed my determination to run for mayor.
5.
to strengthen (a person) in habit, resolution, opinion, etc.: The accident confirmed him in his fear of driving.
6.
to administer the religious rite of confirmation to.

Origin:
1250–1300; < Latin confirmāre to strengthen, confirm (see con-, firm1); replacing Middle English confermen < Old French < Latin, as above

confirmable, adjective
confirmability, noun
confirmer; Law. confirmor [kon-fer-mawr, kuhn-fur-mer] , noun
confirmingly, adverb
nonconfirming, adjective
preconfirm, verb (used with object)
reconfirm, verb (used with object)
unconfirm, verb (used with object)
unconfirmability, noun


1. prove, substantiate, authenticate, validate. 4. fix.


1. disprove. 3. invalidate. 4. shake.
Dictionary.com Unabridged

confirmed

[kuhn-furmd]
adjective
1.
made certain as to truth, accuracy, validity, availability, etc.: confirmed reports of new fighting at the front; confirmed reservations on the three o'clock flight to Denver.
2.
settled; ratified.
3.
firmly established in a habit or condition; inveterate: a confirmed bachelor.
4.
given additional determination; made resolute.
5.
having received the religious rite of confirmation.

Origin:
1350–1400; Middle English confermyd. See confirm, -ed2

confirmedly [kuhn-fuhr-mid-lee] , adverb
confirmedness [kuhn-fur-mid-nis, -furmd-] , noun
unconfirmed, adjective
well-confirmed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
confirm (kənˈfɜːm)
 
vb
1.  (may take a clause as object) to prove to be true or valid; corroborate; verify
2.  (may take a clause as object) to assert for a second or further time, so as to make more definite: he confirmed that he would appear in court
3.  to strengthen or make more firm: his story confirmed my doubts
4.  to make valid by a formal act or agreement; ratify
5.  to administer the rite of confirmation to
 
[C13: from Old French confermer, from Latin confirmāre, from firmusfirm1]
 
con'firmable
 
adj
 
con'firmatory
 
adj
 
con'firmative
 
adj
 
con'firmer
 
n

confirmed (kənˈfɜːmd)
 
adj
1.  (prenominal) long-established in a habit, way of life, etc: a confirmed bachelor
2.  having received the rite of confirmation
3.  (of a disease) another word for chronic
 
confirmedly
 
adv
 
confirmedness
 
n

unconfirmed (ˌʌnkənˈfɜːmd)
 
adj
not confirmed; uncorroborated: unconfirmed reports

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

confirm
late 13c., from L. confirmare "make firm, strengthen, establish," from com- intensive prefix + firmare "to strengthen," from firmus (see firm (adj.)).

unconfirmed
1565, "not having received the rite of confirmation," from un- (1) "not" + pp. of confirm. Meaning "not supported by further evidence" is attested from 1671.

confirmed
1390s, of diseases, "firmly established, pp. adj. from confirm. Of persons and their habits, from 1826.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences for unconfirmed
Reports that it has build its nest in tree holes are unconfirmed.
The dread trooper and dread commander are still unconfirmed if they were ever released.
The united nations environment programme lists an unconfirmed species, betta cf.
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