Deidre is derived from the Old Irish term Derdriu, meaning sorrow or broken-hearted. It is associated with the meaning 'sorrow'and 'daughter. 'The name gained popularity in the 20th century due to its association with the tragic heroine Deirdre from Irish mythology. The name has been featured in various works of literature, including plays by William Butler Yeats and J. Synge, which have contributed to its enduring cultural significance. Deidre is a variant of the more popular name Deirdre, which has been a part of Irish mythology for centuries. The name Deirdre is known for its tragic story, where the heroine is compelled to marry King Conchobar of Ulster and witnesses the murder of her lover Naoise, ultimately leading to her own death by a broken heart. The name's popularity has fluctuated over time, peaking in the mid-20th century. Deidre was among the top 100 most popular names in Ireland between 1964 and 1997 and was a top 10 name for Irish girls between 1966 and 1979. In the United States, it was among the top 500 names between 1960 and 1972, reaching its peak popularity in 1961 at the 333rd spot.
