The weapon dates to prehistory so, there is no one person that credit can be assigned to.
3260 BC
A small dagger is a stiletto.
knife,
a small killing knife
dagger
when where Daggers invented
"Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers."Pugio" is the Latin word for a knife or a dagger. It came from the Roman civilization as it was carried by all Roman soldiers.
Either a dagger or a dirk.
Poignard, Kris, Stiletto, or just knife, are all names for dagger-like weapons.
The dagger axe is a medieval weapon.
All these words are modifiers of the word knife. While dagger and switchblade are stand alone words for knife, all these are designations of a cutting knife.
with a bow and arrow or a knife/dagger