raben
Bingham
ræ/ben
vi. to increase in size perpendicularly as the batua when about to fight.
Sabatier
raben
v. to move (going, flying, swimming, sailing), sideways (for ex. as aeroplane veering), to lean to one side.
red. rabeniben: to oscillate, to move now on one side, now on another (as dying fish).
ex. rabeniben nako: moving in this manner.