Spring Jewish holiday

• (Judaism) Jewish holy day celebrated on the sixth of Sivan to celebrate Moses receiving the Ten Commandments

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1892, from Hebrew šabuot , plural of šabua "week."

Wikipedia Word definitions in Wikipedia
Shavuot (or Shovuos , in Ashkenazi usage; Shavuʿoth in Sephardi and Mizrahi Hebrew (, lit. "Weeks"), known as the Feast of Weeks in English and as Pentecost (Πεντηκοστή) in Ancient Greek , is a Jewish holiday that occurs on the sixth day of the Hebrew month ...