Onam
/ˈəʊnam/noun
A Hindu harvest festival celebrated in August–September especially in Kerala, south-western India.
Origin
Late 19th century. From Malayalam ōṇam the constellation Aquila, national festival of Kerala at the beginning of harvest in the month of Cingam (August–September) from Prakrit soṇa and its etymon Sanskrit śravaṇa the constellation Aquila.