veteran old-timer oldtimer old hand warhorse old stager stager
veteran%1:18:00:: old-timer%1:18:01:: oldtimer%1:18:01:: old_hand%1:18:00:: warhorse%1:18:00:: old_stager%1:18:00:: stager%1:18:01::
veteran
an experienced person who has been through many battles; someone who has given long service