mad_rich

It is a ghastly word. It implies that the speaker has previously planed, or perhaps even enplaned, which doesn't sound like a particularly pleasant experience. I've just planed my bathroom door, and even that isn't likely to become deplaned in the near future.

I've never heard of anyone debus, decar debicycle or for that matter deseat.

I suspect the kind of people who 'deplane' also 'breakfast' and watch as their garden 'greens'.

I'm afraid I'm not the kind of person who appreciates his noun being verbed.