older — far advanced in the years of one's or its life: an old man; an old horse; an old tree.
ancient — Ancient means very old, or having existed for a long time.
senior — older or elder (designating the older of two men bearing the same name, as a father whose son is named after him, often written as Sr. or sr. following the name): I'd like to speak with the senior Mr. Hansen, please. I'm privileged to introduce Mr. Edward Andrew Hansen, Sr. Compare junior (def 1).
earlier — in or during the first part of a period of time, a course of action, a series of events, etc.: early in the year.
patriarch — the male head of a family or tribal line.
senior citizen — an elderly or aged person, especially one who is retired.
veteran — a person who has had long service or experience in an occupation, office, or the like: a veteran of the police force; a veteran of many sports competitions.
ancestor — Your ancestors are the people from whom you are descended.
matriarch — the female head of a family or tribal line.
