Definition of Lammas
1 : August 1 originally celebrated in England as a harvest festival —called also Lammas Day
2 : the time of the year around Lammas Day
Origin of lammas
Middle English Lammasse, from Old English hlāfmæsse, from hlāf loaf, bread + mæsse mass; from the fact that formerly loaves from the first ripe grain were consecrated on this day
First Known Use: before 12th century
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