Veteran
VET'ERAN, adjective [Latin veteranus, from vetero, to grow old, from vetus, old.]
Having been long exercised in any thing; long practiced or experienced; as a veteran officer or soldier; veteran skill.
VET'ERAN, noun One who has been long exercised in any service or art, particularly in war; one who has grown old in service and has had much experience.
Ensigns that pierc'd the foe's remotest lines, the hardy veteran with tears resigns.