accession
noun
[ əkˈsɛʃ(ə)n ]
• the attainment or acquisition of a position of rank or power.
• "the Queen's accession to the throne"
• a new item added to an existing collection of books, paintings, or artefacts.
• "the day-to-day work of cataloguing new accessions"
accession
verb
• record the addition of (a new item) to a library, museum, or other collection.
• "each book must be accessioned and the data entered into the computer"
Origin:
late 16th century (in the general sense ‘something added’): from Latin accessio(n- ), from the verb accedere ‘approach, come to’ (see accede).