Deidre

Deidre is a Deirdre, derived from the Old Irish name Derdriu, whose meaning is uncertain but may be connected to the element der meaning "daughter." In Irish legend, Deirdre was a tragic heroine: she died of a broken heart after the king of Ulster, Conchobar, forced her to marry him and killed her lover Naoise. This poignant story gained renewed attention in the early 20th century through William Butler Yeats's play Deirdre (1907) and J. M. Synge's Deirdre of the Sorrows (1910), leading to its popularization as a given name. The variant spelling Deidre emerged in the 20th century and has been used primarily in English-speaking countries. It shares variants including Deidra and Deitra.