Cronus Kronos Methuselah Nestor Old Paar Time centenarian dotard elder gaffer geezer golden-ager gramps grandfather grandsire graybeard nonagenarian octogenarian old chap old codger old dog old duffer old geezer old gent old gentleman old man old party old-timer older oldster pantaloon patriarch presbyter senior citizen septuagenarian sexagenarian the greatest innovator the quiet-voiced elders venerable sir veteran