accession

Ultimately from Latin accessiō, from accēdō (English accede). Cognate to French accession. First attested in 1646.

• (UK, US, Canada) IPA^(key): /ækˈsɛʃ.ən/, /əˈsɛʃ.ən/
  • (US)

    (file)

• (General Australian) IPA^(key): /ækˈseʃ.ən/, /əˈseʃ.ən/

accession (countable and uncountable, plural accessions)

1. A coming to; the act of acceding and becoming joined.

   a king's accession to a confederacy

2. Increase by something added; that which is added; augmentation from without.
   • 1776, Edward Gibbon, chapter 1, in The History of the Decline and Fall of the Roman Empire, volumes (please specify |volume=I to VI), London: […] W[illiam] Strahan; and T[homas] Cadell, […], →OCLC, page 5:

     The only accession which the Roman empire received, during the first century of the Christian Aera, was the province of Britain.

   • 1803, John Browne Cutting, “A Succinct History of Jamaica” in Robert Charles Dallas, The History of the Maroons, London: Longman and Rees, Volume 1, p. xli,

     […] armed vessels being provided, their crews were soon recruited by accessions from the needy or adventurous, the discontented or the bold.

3. (law) A mode of acquiring property, by which the owner of a corporeal substance which receives an addition by growth, or by labor, has a right to the part or thing added, or the improvement (provided the thing is not changed into a different species).
4. (law) The act by which one power becomes party to engagements already in force between other powers.
5. The act of coming to or reaching a throne, an office, or dignity.

   her accession to the throne

   • 1943 March and April, “L.N.E.R. New Mixed-Traffic 4-6-0 Locomotive”, in Railway Magazine, page 104:

     This is the 6 ft. 4-6-0 engine No. 8301, Springbok, the second design produced by Mr. Edward Thompson since his accession to office as Chief Mechanical Engineer.

   • 2022 September 9, Caroline Davies, “Charles to be proclaimed King at St James’s Palace on Saturday”, in The Guardian‎:

     Charles will be formally proclaimed King at a historic Accession Council in an ancient ceremony at St James’s Palace on Saturday, it has been announced.

6. (medicine) The invasion, approach, or commencement of a disease; a fit or paroxysm.
7. Agreement.
8. Access; admittance.
9. A group of plants of the same species collected at a single location, often held in genebanks.[1]
10. (Scotland) Complicity, concurrence or assent in some action.

accession (third-person singular simple present accessions, present participle accessioning, simple past and past participle accessioned)

1. (transitive) To make a record of (additions to a collection).

• deaccession

• ascension

• “accession”, in OneLook Dictionary Search.
• “accession”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “accession, n.” in the Dictionary of the Scots Language, Edinburgh: Scottish Language Dictionaries.

• Ascencios

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accession f (plural accessions)

1. accession (to throne)
2. (law) accession

   accession sociale à la propriété ― assisted home-ownership scheme

• “accession”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.