Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
de-access is a verb meaning "dispose of by selling". It carries one recorded sense.
dispose of by selling
“the museum sold off its collection of French impressionists to raise money”
“the publishing house sold off one of its popular magazines”
Definitions, synonyms and semantic relations for de-access come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.