• Webster's Revised Unabridged Dictionary
    • n Overpoise Preponderant weight; a counterbalance.
    • v. t Overpoise To outweigh; to overbalance.
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Century Dictionary and Cyclopedia
    • overpoise To outweigh.
    • n overpoise Preponderant weight.
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Chambers's Twentieth Century Dictionary
    • v.t Overpoise ō′vėr-poiz to outweigh
    • n Overpoise a weight sufficient to weigh another down
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In literature:

On the finest verge of overpoise he held, swung round with a slackening hold, and dropped him like a cast bale to the bottom of the boat.
"The Unknown Sea" by Clemence Housman