Etymology
Advertisement
gormless (adj.)
c. 1746, also in early use gaumless, gawmless, "wanting sense, stupid," a British dialectal word, from gome "notice, understanding" (c. 1200), from Old Norse gaumr "care, heed" (of unknown origin); + -less.
Related entries & more 
Advertisement
gorm (n.)
"fool," 1912, perhaps from gormless.
Related entries & more