Meaning

verb disturb in mind or make uneasy or cause to be worried or alarmed

originFrom Middle English carken (“to be anxious, worry”, intransitive), from Old English *carcian ("to be sorrowful, worry"; found in becarcian (“to worry about, care for”)), a frequentative form of Old English carian (“to care”), equivalent to care + -k. The Middle English carken, also charken (“to load (sth.); to bear (crops); to burden, harass”, transitive), from Old Northern French carquier (“to…

Etymology from Wiktionary, CC BY-SA 3.0