Wikipedia
Yeonggam
Yeong-gam or Younggam ( hangul:영감, in hanja:令監) is a nickname or Korean honorific for an old man in Korea. Yeong-gam was historically an honorific title for second-level and third-level civil servants; Vice-Minister, Assistant Secretary of the Korean Goryeo Dynasty and Joseon Dynastys.
Over time the word became an honorific or nickname for a judge, county governor, head of a township or old man. In recent years, yeong-gam has come to be used primarily as a nickname for elderly men. Yeong-gam has been used in Korea for more than a thousand years.