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Lú·na·saalso Lugh·na·sa (lo͞o′nə-sə)
1. An ancient Celtic harvest festival celebrated with dancing and bonfires.
2. The day on which this feast was held, usually August 1.
[Irish (Lá) Lúnasa, Lúnasa (Day), from Middle Irish Lughnasadh, Lúnasa, from Old Irish Lugnasad, of obscure origin (but understood in Irish tradition as Lug, the god Lug + nassad, násad, assembly, festival).]
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