Jenny, jen′i, n. a female bird, a wren—usually Jenn′y-wren: a female ass: a spinning-jenny. [From the name Jenny; prob. the last sense from gin.]

Jeofail, jef′āl, n. an error in pleadings, or the acknowledgment of a mistake. [O. Fr. je faille, I fail.]

Jeopardy, jep′ard-i, n. hazard, danger.—vs.t. Jeop′ard, Jeop′ardise, to put in jeopardy.—n. Jeop′arder.—adj. Jeop′ardous, exposed to danger or loss.—adv. Jeop′ardously. [Fr. jeu parti, a divided game—Low L. jocus partitus—L. jocus, a game, partitus, divided—partīri, to divide.]

Jerboa, jėr-bō′a, n. a genus of small rodent quadrupeds, remarkable for the length of their hind-legs and their power of jumping. [Ar. yarbū‛.]

Jereed, je-rēd′, n. a kind of blunt javelin used by the Turks in mock-fights. [Ar. jarīd.]

Jeremiad, jer-e-mī′ad, n. a lamentation: a tale of grief: a doleful story. [From Jeremiah the prophet, author of the book of Lamentations.]

Jerfalcon. Same as Gyrfalcon.

Jericho, jer′i-kō, n. a remote place, to which one is humorously consigned—from Jericho in Palestine and the story in 2 Sam. x. 4, 5.

Jerk, jėrk, v.t. to throw with a quick effort: to give a sudden movement.—n. a short, sudden movement: a striking against with a sudden motion: an involuntary spasmodic contraction of a muscle.—ns. Jerk′er; Jerk′iness.—adj. Jerk′y, moving or coming by jerks or starts, spasmodic; capricious, impatient. [A variant of jert and gird, and conn. with yard, a rod.]

Jerk, jėrk, v.t. to search, as a vessel for concealed or smuggled goods—also Jerque.—ns. Jerk′er, Jerqu′er; Jerqu′ing.