Sentence:  "Will it hurt much?"—"No, mine own: / I wish I could bear the <WSD>pang</WSD> for both." / "I wish I could bear the <WSD>pang</WSD> alone: / Courage, dear, I am not loth." 
Meaning of the word marked with <WSD> tags:  A paroxysm of extreme physical pain or anguish; a feeling of sudden and transitory agony; a throe.