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desiderium

[des-i-deer-ee-uh m]
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noun, plural des·i·de·ri·a [des-i-deer-ee-uh] /ˌdɛs ɪˈdɪər i ə/.
  1. an ardent longing, as for something lost.

Origin of desiderium

From Latin, dating back to 1705–15; see origin at desiderate, -ium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018