• Webster's Revised Unabridged Dictionary
    • Outswell To exceed in swelling.
    • Outswell To swell beyond; to overflow.
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Century Dictionary and Cyclopedia
    • outswell To swell to a greater degree than; surpass in inflation.
    • outswell To overflow.
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Chambers's Twentieth Century Dictionary
    • v.t Outswell owt-swel′ (Shak.) to overflow.
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In literature:

I also noted several scored and polished patches on the hardest and most enduring of the outswelling rock bosses.
"Scientific American Supplement, No. 312, December 24, 1881" by Various