In Norse mythology, Líf (identical with the Old Norse feminine noun meaning "life, the life of the body") and Lífþrasir (sometimes anglicized as Lifthrasir, Old Norse masculine name from líf and þrasir. Lexicon Poëticum defines this name as "Livæ amator, vitæ amans, vitæ cupidus", "Líf's lover, lover of life, zest for life")—female and male respectively—are two humans who are foretold to survive the events of Ragnarök by hiding in a wood called Hoddmímis holt, and after the flames have abated, to repopulate the newly risen and fertile world. Líf and Lífþrasir are mentioned in the Poetic Edda, compiled in the 13th century from earlier traditional sources, and the Prose Edda, written in the 13th century by Snorri Sturluson. Scholarly theories have been proposed about the underlying meaning and origins of the two names.