Etymology

lunation

lu·na·tion
L1U1N1A1T1I1O1N1

Today it means: A month of an average of approximately 29.53 days, measured from a lunar phase until the return of that same phase. Full definition →

Medieval Latin lūnātiō
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The story

  1. Medieval Latin · borrowed fromlūnātiō
  2. Medieval Latin · borrowed fromlūnātiō
  3. English todaylunation

Borrowed from Medieval Latin lūnātiō.

Etymology from Wiktionary, CC BY-SA 4.0.