Webster's English Dictionary

Enter the word to look up:

vigor

vig.or or vig.our \'vig-*r\ n [ME, fr. MF vigor, fr. L, fr. vige-re to be 
   vigorous - more at] chiefly Brit  VIGIL 1: active strength or force of body 
   or mind  2: strength or force in animal or vegetable nature or action  3: 
   intensity of action or effect : FORCE  4: effective legal status : VALIDITY