For example, I've seen the word dumtempe before used to mean for a while or for some time.
I used the word today, then started second-guessing myself and looked it up at Vortaro.net, but it showed no results. Isn't Vortaro.net basically an online version of PIV?
Was I wrong to use the word? Have I been led astray concerning the word?
This has happened multiple times before.