“Canvass” Tents, or is it “Canvas” Tents?

“Canvass Tents” is a misspelling!

However, interestingly, “canvass” is a real word, so it often doesn’t register as a misspelling when researching tents. Canvass (the misspelling that has an extra s) is a verb meaning to examine or discuss thoroughly but can also mean  to conduct a survey.

Check out The Grammarist for more details.