1) Adult male 2) Golden ager 3) Graybeard 4) Methuselah 5) Old man 6) Old person 7) Oldster 8) Senior citizen 9) Slang for an elderly man 1) Codger 2) Gaffer 3) Graybeard 
Greybeard is a science fiction novel by British author Brian Aldiss, published in 1964. ==Plot summary== Set decades after the Earth`s population has been sterilised as a result of nuclear bomb tests conducted in Earth`s orbit, the book shows a world emptying of humans, with only an ageing, childless population left. The story is mainly told thr.....
See bellarmine.
A greybeard is an earthenware pot used for holding spirits. The name greybeard is also given to a large stone jar.Greybeard is slang for an elderly man.
graybeard noun a man who is very old