Mid-16th century. Original meaning was somewhat idiomatic, meaning "to walk using snowshoes." Probably of Scandinavian origin, compare Icelandic þrūga (“snowshoe”), Norwegian truga (“snowshoe”) and dialectal Swedish trudja (“snowshoe”).
trudge (plural trudges)
- (intransitive) To walk wearily with heavy, slow steps.
- (transitive) To trudge along or over a route etc.
- Webster's Seventh New Collegiate Dictionary, Springfield, Massachusetts, G.&C. Merriam Co., 1967