What is the meaning of fagged?

verb

• Act as a servant for older boys, in British public schools.
  • synonyms: fag
• Work hard.
  • usage: "She was digging away at her math homework"; "Lexicographers drudge all day long"
  • synonyms: labor, labour, toil, fag, travail, grind, drudge, dig, moil
• Exhaust or get tired through overuse or great strain or stress.
  • usage: "We wore ourselves out on this hike"
  • synonyms: tire, wear upon, tire out, wear, weary, jade, wear out, outwear, wear down, fag out, fag, fatigue

adjective

• Drained of energy or effectiveness; extremely tired; completely exhausted.
  • usage: "the day's shopping left her exhausted"; "he went to bed dog-tired"; "was fagged and sweaty"; "the trembling of his played out limbs"; "felt completely washed-out"; "only worn-out horses and cattle"; "you look worn out"
  • synonyms: exhausted, dog-tired, fatigued, played out, spent, washed-out, worn-out, worn out