Librate
Librate (lī"brāt) , intransitive verb
[Latin libratus, past participle of librare to balance, to make even, from libra. Compare Level, Deliberate, Equilibrium.]
To vibrate as a balance does before resting in equilibrium; hence, to be poised.
Their parts all librate on too nice a beam.
Librate , transitive verb
To poise; to balance.