old-timer

[ ohld-tahy-mer ]
/ ˈoʊldˈtaɪ mər /

noun Informal.

a person whose residence, membership, or experience began long ago and has been continuing for a considerable length of time; veteran.
an old person.
an old-fashioned person or thing.

Origin of old-timer

First recorded in 1855–60; old-time + -er1

British Dictionary definitions for old timer

old-timer

noun

a person who has been in a certain place, occupation, etc, for a long time
US an old man