trek
n. countablen. a long and difficult journey, usually made on foot through mountains or forests. You use this word when the trip feels like a real challenge.
n. a long, arduous journey, typically involving travel on foot through difficult terrain. Often carries a connotation of physical exertion or endurance.
We went on a long trek through the mountains last summer.
The group prepared for a three-day trek across the valley, carrying all their own supplies and water.
While the initial stages of the trek were manageable, the steep incline and thinning air at higher altitudes tested the stamina of even the most experienced hikers.
From Afrikaans trek, from Dutch trekken, from Middle Dutch trekken (weak verb) and trēken (“to trek, place, bring, move”, strong verb), from Old Dutch trekkan, trekan, from Proto-West Germanic trekan, from Proto-Germanic trekaną, trakjaną (“to drag, haul, scrape, pull”), from Proto-Indo-European dreg- (“to drag, scrape”).
Often used with the verb 'go on' or 'make'.