The miser refused to buy himself new socks, even though his old ones were full of holes.

miser 是名词，指"吝啬鬼、守财奴"，特指那些过分节俭、不愿花钱的人，即使在自己需要的东西上也舍不得花钱。这个词源自拉丁语 miser（可怜的），暗示这种人虽然有钱但过着可怜的生活。