1851, agent noun from trek (v.).
Online Etymology Dictionary, © 2010 Douglas Harper
Related Wordspassenger, tourist, commuter, adventurer, migrant, sailor, pilgrim, hiker, wanderer, sightseer, tripper, drifter, gypsy, vagabond, navigator, truant, rover, itinerant, vagrant, tramp
Examples from the Web for trekker
Old Peter the trekker was respected as a thoroughly well-mannered, orderly citizen.The Life of Johannes Brahms (Vol 1 of 2)