Lethia, a rare and unique given name of Latin origin, is derived from the Latin word 'lethe', which means 'forgetfulness'. This name was popularized by the British poet and writer Algernon Charles Swinburne in his collection of poetry titled "Poems and Ballads", published in 1866. The name Lethia has gained traction as a unique choice for parents seeking distinctive names for their daughters.
"Lethia experienced fluctuations in its popularity over the years, with a notable spike during World War I, peaking at 24 births in 1917. However, it has since become quite rare, with only 6 births recorded in both 1977 and 2004."