As a given name, it has found occasional usage in the English-speaking world from the late 19th century onwards.
The novel Coming Home (1995) by Rosamunde Pilcher, set in 1930s Cornwall, has a character called Loveday. Loveday Minette is a fictional character in the children's fantasy novel The Little White Horse (1946) by Elizabeth Goudge (in the novel's film adaptation, she is known as Loveday de Noir). Also, a character in Poldark.
Already growing in popularity due to Australian model Elle Macpherson (1964-), this name received a boost in the United States after the release of the 2001 movie Legally Blonde featuring the main character Elle Woods. In the United Kingdom the name was already fairly common at the time the movie came out, and it actually started declining there shortly afterwards. A famous bearer is American actress Elle Fanning (1998-).
The spelling was later altered to Cordelia when Geoffrey's story was adapted by others, including Edmund Spenser in his poem The Faerie Queene (1590) and Shakespeare in his tragedy King Lear (1606).