The name rose comes from French, itself from Latin, rosa, which was borrowed from Oscan, from Greek ρόδιόν rhodion (Aeolic υρόδιόν wrodion), from Old Persian wurdi "flower" (cf.Avest. warda, Sogdian ward, Parthian wâr)" (Wikipedia).
This is the official and arid version, in which the unusual beauty of flowers and the divine fragrance, that made the rose the most loved and cultivated plant on Earth, are not really valued.
Its genesis on Earth was explicated through numerous legends: it was created by Chloris, the goddess of flowers, from an enchanting nymphy's body, all the gods contributing to its birth with a gift (Dionysos - the intoxicating scent, the Three Graces - cheerfulness, brilliance and charm, Ares - the protecting thorns); others say that emerged in the same time with Aphrodytis from the sea foam, covering her as a garland, becoming one of her symbols, or even that it was born from Cupid's smile, and its thorns are his metamorphosed arrows...
It seems that even the Hindu gods had once a little dispute about establishing the most beautiful flower on Earth: Vishnu loved the rose, but Brahma, who never saw a flower like this, preferred the lotus, which he considered to be the flower of perfection and spiritual transcending. At its sight though, Brahma had to admit that no other flower could be more beautiful.
In the Arab tradition, the first rose was brought to life by the sunshine radiance in the Great Garden of Persia, from where expanded on the entire Earth, as a symbol of fertility, beauty and purity.
Even the thorns created controversies, the Romanian legends suggesting that those were Satan's evil work, as an attempt to the perfection of GOD's creation, the flower itself, belief inspired probably by Zarathustra, who said that the rose is the symbol of innocence, and its thorns appeared when the spirit of evil, Ahriman, made his entrance into the world for the first time. The Flower of Saint-Exupery's Little Prince covered herself with thorns to protect her ingenuity and beauty from the bad world...
Their colour also generated many legends. It says that the rose was only white at the beginning and became red in the moment when Jupiter surprised Venus in the act of bathing in a lake surrounded by roses. What came next, nobody could tell... :)
Aisha, prophet Mohamed's wife, is the one who coloured the roses in yellow, as a sign of her infidelity...
One of the most beautiful legend is of Persian origin, and inspired Oscar Wilde in "The Nightingale and the Rose": a nightingale, in love with a white rose, embraced the last so closely that the thorns stabbed her little heart and her blood coloured the rose in red - a symbol of passionate, destructive love.