נָבַב

Hollow with boards shalt thou make it: as it was shewed thee in the mount, so shall they make it.

And he put the staves into the rings on the sides of the altar, to bear it withal; he made the altar hollow with boards.

And concerning the pillars, the height of one pillar was eighteen cubits; and a fillet of twelve cubits did compass it; and the thickness thereof was four fingers: it was hollow.

For vain man would be wise, though man be born like a wild ass's colt.