An older man, especially one who is considered stubborn, eccentric, or crusty but often in an affectionate or amusing way.
From 'cad' (a disreputable man) possibly combined with elements suggesting an older person, or from Scottish dialect. Evolved by the 1700s to mean a peculiar old fellow, usually without serious malice.
The lovable old codger is a stock character in British literature—think Mr. Magoo or Grandpa Simpson—cranky on the outside but hearts of gold underneath!
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