Meaning

adjective lacking or showing a lack of due concern

adjective carefree and happy and lighthearted

originFrom Middle English blithe (“glad, happy, joyful; causing joy, joyous; gentle, mild; gracious, merciful; bright, shining; beautiful, fair”) [and other forms], from Old English blīþe (“happy, gentle”), from Proto-West Germanic *blīþī, from Proto-Germanic *blīþiz (“friendly; gentle, mild; pleasing”), from Proto-Indo-European *bʰlī- (“fine; light; pleasant”), from Proto-Indo-European *bʰel- (“shiny;…

Etymology from Wiktionary, CC BY-SA 3.0