Yearn, yėrn, v.i. and v.t. (Shak.) to grieve. [M. E. ermen—A.S. yrman, to vex—earm, poor.]

Yearn, yėrn, v.t. (Spens.) to earn.

Yearn, yėrn, v.i. to curdle, as milk—also Earn.—n. Yearn′ing, rennet.

Yeast, yēst, n. the froth of malt liquors in fermentation: the vegetable growth to which fermentation is due, of value in brewing, baking, &c.: (Shak.) spume or foam of water.—v.i. to ferment.—ns. Yeast′iness, the state of being yeasty or frothy; Yeast′-plant, a small plant causing alcoholic fermentation in saccharine liquids; Yeast′-pow′der, a baking powder.—adj. Yeast′y, like yeast: frothy, foamy: unsubstantial. [A.S. gist, gyst; Ger. gäscht, gischt.]

Yeld, yeld, adj. (Scot.) barren, not giving milk. [A variant of geld.]

Yeldring, yel′dring, n. the same as Yowley.—Also Yel′drock.

Yelk. Same as Yolk.

Yell, yel, v.i. to howl or cry out with a sharp noise: to scream from pain or terror.—v.t. to utter with a yell.—n. a sharp outcry.—n. Yell′ing.—v.i. Yell′och (Scot.), to yell.—n. a yell. [A.S. gellan, gyllan; Ger. gellen; conn. with A.S. galan, to sing.]

Yellow, yel′ō, adj. of a bright gold colour.—n. a bright golden colour: (pl.) the peach-yellows (see Peach): (Shak.) jaundice in horses.—v.t. to make yellow.—v.i. to become yellow.—adjs. Yell′ow-backed, -bell′ied, -billed, -breast′ed, -cov′ered, -crowned, -eyed, -foot′ed, -front′ed, -head′ed, -horned, -legged, -necked, -polled, -ringed, -rumped, -shoul′dered, -spot′ted, &c.—ns. Yell′ow-bird, one of various birds of a yellow colour—the golden oriole, summer-warbler, &c.; Yell′ow-boy, a gold coin: a mulatto or dark quadroon:—fem. Yell′ow-girl; Yell′ow-bunt′ing, the yellow-hammer; Yell′ow-earth, a yellow ochre sometimes used as a pigment; Yell′ow-fē′ver, a pestilential contagious fever of a continuous and special type, presenting at least two well-defined stages, the first occupying 36 to 150 hours, marked by a rapid circulation and high temperature; the second being characterised by general depression and black vomit—also known as Yellow Jack, Bronze John, El Vomito, and Vomito Prieto or Vomito Amarilli; Yell′ow-flag, a flag of a yellow colour, displayed by a vessel in quarantine or over a military hospital or ambulance; Yell′ow-gum, the melæna or black jaundice of infants; Yell′ow-hamm′er, -amm′er, a song-bird, so named from its yellow colour: the common yellow-bunting.—adj. Yell′owish, somewhat yellow.—ns. Yell′owishness; Yell′ow-met′al, a brass consisting of sixty parts copper and forty parts zinc; Yell′owness; Yell′ow-root, an American herb whose root-stock yields berberine—also Orange-root, Goldenseal; Yell′ow-soap, common soap composed of tallow, resin, and soda; Yell′ow-wash, a lotion consisting of a mixture of mercuric chloride and lime-water; Yell′ow-weed, weld; Yell′ow-wood, a name given to Fustic and many other trees—e.g. satin-wood, and various kinds of podocarpus, rhus, xanthoxylum, &c.; Yell′ow-wort, an annual of the gentian family—also Yell′ow-cen′taury.—adj. Yell′owy, yellowish.—ns. Yell′ow-yol′dring, -yor′ling, or -yow′ley, the European yellow-hammer.—Yellow berries, Persian berries. [A.S. geolo; Ger. gelb; cog. with L. heluus, light bay.]

Yelp, yelp, v.i. to utter a sharp bark.—n. a sharp, quick cry or bark.—n. Yelp′er. [A.S. gilpan, to boast, exult; Ice. giálpa, to yelp.]