belly

Etymology

From Middle English bely, beli, bali, below, belew, balyw, from Old English bielġ (“bag, pouch, bulge”), from Proto-West Germanic *balgi, *balgu, from Proto-Germanic *balgiz, *balguz (“skin, hide, bellows, bag”), from Proto-Indo-European *bʰelǵʰ- (“to swell, blow up”). Cognate with Dutch balg, German Balg, Danish bælg, Old Irish bolg, Welsh bol. Doublet of bellows, blague, bulge, and budge. See also bellows.

noun

1. The abdomen, especially a fat one.
   You've grown a belly over Christmas! Time to join the gym again.
2. The stomach.
   My belly was full of wine.
3. The womb.
4. The lower fuselage of an airplane.
5. The part of anything which resembles (either closely or abstractly) the human belly in protuberance or in concavity; often, the fundus (innermost part).
   1. The main curved portion of a knife blade.
   2. (architecture) The hollow part of a curved or bent timber, the convex part of which is the back.

verb

1. To position one’s belly; to move on one’s belly.
2. (intransitive) To swell and become protuberant; to bulge or billow.
   The halliards twanged against the tops, the bunting bellied broad, 1890, Rudyard Kipling, The Rhyme of the Three Captains
   There were trees whose trunks bellied into huge swellings. 1914, Theodore Roosevelt, chapter 6, in Through the Brazilian Wilderness
   1917 rev. 1925 Ezra Pound, "Canto I" winds from sternward Bore us onward with bellying canvas ...
   1930, Otis Adelbert Kline, The Prince of Peril, serialized in Argosy, Chapter 1, The building stood on a circular foundation, and its walls, instead of mounting skyward in a straight line, bellied outward and then curved in again at the top.
3. (transitive) To cause to swell out; to fill.