Simple past tense and past participle of demount.(verb)
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Use "demounted" in a sentence
"The computer table was demounted tonight (hopefully we didn't make too much noise for the downstairs neighbours - we need some goodwill from them when we're showing the flat, e.g. no smoking in the stairs (not sure if it's them, though) and no restoration project involving solvents), and our computers are in temporary positions with monitors in the window sill etc."
"The bodies of guards and servitors were heaped behind improvised barricades of furniture and demounted doors."
"In cases where gear camber wears one side faster than the other, tires can be demounted and turned around to extend the tire life."