I do understand that it’s hard to believe that this context clues worksheet on the verb galumph represents a real word. It does: it’s used intransitively and means, you might not be quite as surprised to hear, “to move with a heavy, clumsy tread.” If nothing else, it’s a word that would suffice well, I think, to introduce or reinforce the concept of onomatopoeia.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.