[L., 1st pers. pl. perf. ind. of sūmĕre to take.] A correct expression taking the place of an incorrect but popular one (mumpsimus).

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1545.  Hen. VIII., Sp. Parl., 24 Dec., in Hall, Chron., Hen. VIII. (1548), 261 b. Some be to stiffe in their old Mumpsimus, other be to busy and curious, in their newe Sumpsimus.

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1621.  Bp. Mountagu, Diatribæ, 115. Some very few, too much giuen vp vnto their old Mumpsimus, which they would not leaue for the new Sumpsimus.

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1653.  Z. Bogan, Mirth Chr. Life, 124. One that hath been long in another way … will not easily be brought to change his old mumsimus (as they say) for a new sumpsimus.

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1818.  Bentham, Ch. Eng., Introd. 34. The insufficiency and inaptitude of the old mumpsimus, on the back of which they thus clap this their new sumpsimus.

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1828.  Scott, Aunt Margaret’s Mirr. (ad init.). The clergyman, who, without vindicating his false reading, preferred, from habit’s sake, his old mumpsimus to the modern sumpsimus.

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1882.  F. W. Farrar, in Contemp. Rev., March, 372. Did they want a correct sumpsimus, or their erroneous but pleasing mumpsimus?

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