Original thirteenth-century meaning was completely unrelated to death—i.e., general hardship, suffering, and pain. Comes from Old French, meaning “wrong” (i.e., an injustice). From gravis, meaning “weighty,” and sourced from Proto-Indo-European root *gwere- “heavy,” which also forms the words aggravate, blitzkrieg, and brute.
The additional meaning of mental pain and sorrow is from 1300.
Good grief—an exclamation of surprise or dismay (not a declaration that grief can be “good”)—is from 1912.
NOTE: Grief is a doublet* of grave, from Old English, meaning cave, trench, or ditch. Likely from Proto-Indo-European root *ghreb- “dig deep or scrape.”
*Words that have the same etymological root but came into modern usage through different routes evolutionarily, like eyeballs did.
Sentences using GRIEF: