grief

from the Old French grieve or grief, from the Latin gravis ('heavy') remade in popular Latin as grevis influenced by its antonym levis. While the scholarly adjectival form grave preserves the metaphorical sense of grave, honorable, and ipso facto implies a worthy, noble and serious behavior, the adjective grief came from grevis meaning lewd, racy and the noun grief denotes a damage, then a complaint against a damage, and finally a claim to obtain redress for an act of villainy or harmful abuse.