Meaning

noun something inferior in quality or condition or effect

adjective (comparative of `bad') inferior to another in quality or condition or desirability

adjective changed for the worse in health or fitness

originFrom Middle English worse, werse, from Old English wiersa, from Proto-West Germanic *wirsiʀō, from Proto-Germanic *wirsizô. Cognate with Dutch wers (“worse”).

Etymology from Wiktionary, CC BY-SA 3.0