Etymology

diary

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Today it means: A daily log of experiences, especially those of the writer. Full definition →

Latin diārium
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diary · noun, verb1

  1. Latin · derived fromdiārium“a daily allowance for soldiers, in Late Latin also ‘diary’”
  2. English todaydiary

From Latin diārium (“a daily allowance for soldiers, in Late Latin also ‘diary’”), neuter of *diārius, from diēs (“a day”) (whence also journal). Cognate with Spanish diario (“daily; diary”).

diary · adjective2

  1. Latin · borrowed fromdiārius
  2. English todaydiary

From Latin diārius.

Etymology from Wiktionary, CC BY-SA 4.0.