Bel"ly, v. i. To swell and become protuberant, like the belly; to bulge.

The bellying canvas strutted with the gale.

Bel"ly, v. t. [imp. & p. p. Bellied (?); p. pr. & vb. n. Bellying.] To cause to swell out; to fill. [R.]

Your breath of full consent bellied his sails.

Bel"ly (bĕl"l?), n.; pl. Bellies (-lĭz). [OE. bali, bely, AS. belg, bælg, bælig, bag, bellows, belly; akin to Icel. belgr bag, bellows, Sw. bälg, Dan. bælg, D. & G. balg, cf. W. bol the paunch or belly, dim. boly, Ir. bolg. Cf. Bellows, Follicle, Fool, Bilge.] 1. That part of the human body which extends downward from the breast to the thighs, and contains the bowels, or intestines; the abdomen.

☞ Formerly all the splanchnic or visceral cavities were called bellies; -- the lower belly being the abdomen; the middle belly, the thorax; and the upper belly, the head. Dunglison.

2. The under part of the body of animals, corresponding to the human belly.

Underneath the belly of their steeds.

3. The womb. [Obs.]

Before I formed thee in the belly I knew thee.
Jer. i. 5.

4. The part of anything which resembles the human belly in protuberance or in cavity; the innermost part; as, the belly of a flask, muscle, sail, ship.

Out of the belly of hell cried I.
Jonah ii. 2.

5. (Arch.) The hollow part of a curved or bent timber, the convex part of which is the back.

Belly doublet, a doublet of the 16th century, hanging down so as to cover the belly. Shak. -- Belly fretting, the chafing of a horse's belly with a girth. Johnson. -- Belly timber, food. [Ludicrous] Prior. -- Belly worm, a worm that breeds or lives in the belly (stomach or intestines). Johnson.