Webster
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Webster’s Revised Unabridged Dictionary · 1913

Groin

Groin (groin), n. [F. groin, fr. grogner to grunt, L. grunnire.] The snout of a swine. [Obs.] Chaucer.

Groin, v. i. [F. grogner to grunt, grumble.] To grunt to growl; to snarl; to murmur. [Obs.] Chaucer.

Bears that groined coatinually. Spenser.

Groin, n. [Icel. grein distinction, division, branch; akin to Sw. gren, branch, space between the legs, Icel. greina to distinguish, divide, Sw. grena to branch, straddle. Cf. Grain a branch.] 1. (Anat.) The line between the lower part of the abdomen and the thigh, or the region of this line; the inguen.

2. (Arch.) The projecting solid angle formed by the meeting of two vaults, growing more obtuse as it approaches the summit.

3. (Math.) The surface formed by two such vaults.

4. A frame of woodwork across a beach to accumulate and retain shingle. [Eng.] Weale.

Groin, v. t. [imp. & p. p. Groined; p. pr. & vb. n. Groining.] (Arch.) To fashion into groins; to build with groins.

The hand that rounded Peter's dome, And groined the aisles of Christian Rome, Wrought in a sad sincerity. Emerson.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty. Of the others, 1,362 (a word or a single letter each) were inferred by AI from the context by the dictionary’s own rules and are marked with a wavy underline (tap or point at one to see the note); the rest, which could not be inferred with confidence, are left as “?”.