Dag″ger (–gẽr), n. [Cf. OE. daggen to pierce, F. daguer. See Dag a dagger.] 1. A short weapon used for stabbing. This is the general term: cf. Poniard, Stiletto, Bowie knife, Dirk, Misericorde, Anlace.
2. (Print.) A mark of reference in the form of a dagger. It is the second in order when more than one reference occurs on a page; — called also obelisk.
Dagger moth(Zoöl.), any moth of the genus Apatalea. The larvæ are often destructive to the foliage of fruit trees, etc. — Dagger of lath, the wooden weapon given to the Vice in the old Moralities. Shak. — Double dagger, a mark of reference which comes next in order after the dagger. — To look, or speak, daggers, to look or speak fiercely or reproachfully.