look daggers at someone Definition

dagger
noun

1. A knife or short sword with a pointed end, used for stabbing.

Thesaurus: knife, blade, stiletto, bayonet.
2. printing.
The symbol †, used as a reference mark.

Idiom: at daggers drawn

Openly showing anger or dislike and on the point of fighting.

Idiom: look daggers at someone

To give them a fierce or angry look.

Etymology: 14c: possibly from obsolete dag to pierce or stab; compare French dague, literally ‘long dagger'.