(qepHom 2015, p.14):  In medical usage, however, doctors and so on make a distinction between mej'aD "artery" and paw'aD "vein". Maltz said that he thought that earlier these were mejmeH 'aD and pawmeH 'aD, but over time they were shortened.

(qurgh, 8/15/2016):  Marc said about [vuj "expel, eject"] that it's for physically ejecting or expelling things only. It doesn't cover the meaning of "eject" or "expel" when a person is asked to leave somewhere and does so through their own ability (he was ejected from the club so he left and went home, the principal expelled the student), however it does count if the bouncer/teacher picks the person up and physically throws them out of the building." 

To express "gone" in the sense of "no longer here" and the like, make use of mej or mejmoH. This won't work for the person coming into a now-empty room unless what was in the room before and is no longer there is animate. You wouldn't normally say mejpu' quS or quS vImejmoH - unless the chair is a character in a cartoon.)