To get the perspective right I have noted below the connection in parts of Northern Europe where the Ballack and other daggers developed. Finally this short note encompasses the development into the Scottish Dirk and from these notes you can see how that happened. This storyline takes the dagger up to the link with another part of its development creating a doorstep to... "The Bayonet".
Quote"Middle Ages.
(Further information: Misericorde (weapon) and Rondel dagger)
The term dagger appears only in the Late Middle Ages, reflecting the fact that while the dagger had been known in antiquity, it had disappeared during the Early Middle Ages, replaced by the hewing knife or seax.
Depiction of combat with the dagger (degen) in Hans Talhoffer (1467)
The dagger reappeared in the 12th century as the "knightly dagger", or more properly cross-hilt or quillon dagger, and was developed into a common arm and tool for civilian use by the late medieval period.
The earliest known depiction of a cross-hilt dagger is the so-called "Guido relief" inside the Grossmünster of Zürich (c. 1120). A number of depictions of the fully developed cross-hilt dagger are found in the Morgan Bible (c. 1240). Many of these cross-hilt daggers resemble miniature swords, with cross guards and pommels very similar in form to swords of the period. Others, however, are not an exact match to known sword designs, having for example pommel caps, large hollow star shaped pommels on so-called “Burgundian Heraldic daggers” or antenna style cross and pommel, reminiscent of Hallstatt era daggers. The cross-hilt type persisted well into the Renaissance.
The Old French term dague appears to have referred to these weapons in the 13th century, alongside other terms such as poignal and basilard. The Middle English dagger is used from the 1380s.
During this time, the dagger was often employed in the role of a secondary defense weapon in close combat. The knightly dagger evolved into the larger baselard knife in the 14th century. The baselard was considered an intermediate between a short sword and a long dagger, and became popular also as a civilian weapon. Sloane MS. 2593 (c. 1400) records a song satirizing the use of oversized baselard knives as fashion accessories.
In the Late Middle Ages, knives with blade designs that emphasized thrusting attacks, such as the stiletto, became increasingly popular, and some thrusting knives commonly referred to as 'daggers' ceased to have a cutting edge. This was a response to the deployment of heavy armor, such as maille and plate armour, where cutting attacks were ineffective and focus was on thrusts with narrow blades to punch through mail or aim at armour plate intersections (or the eye slits of the helmet visor). These late medieval thrusting weapons are sometimes classed by the shape of their hilt as either roundel, bollock or ear daggers. The term dagger is coined in this time, as are the Early Modern German equivalents dolch (tolch) and degen (tegen). In the German school of fencing, Johannes Liechtenauer (Ms. 3227a) and his successors (specifically Andres Lignizer in Cod. 44 A 8) taught fighting with the dagger.
These techniques in some respects resemble modern knife fighting, but emphasized thrusting strokes almost exclusively, instead of slashes and cuts. When used offensively, a standard attack frequently employed the reverse or icepick grip, stabbing downward with the blade to increase thrust and penetrative force. This was done primarily because the blade point frequently had to penetrate or push apart an opponent's steel chain mail or plate armor in order to inflict an injury. The disadvantage of employing the medieval dagger in this manner was that it could easily be blocked by a variety of techniques, most notably by a block with the weaponless arm while simultaneously attacking with a weapon held in the right hand. Another disadvantage was the reduction in effective blade reach to the opponent when using a reverse grip. As the wearing of armor fell out of favor, dagger fighting techniques began to evolve which emphasized the use of the dagger with a conventional or forward grip, while the reverse or icepick grip was retained when attacking an unsuspecting opponent from behind, such as in an assassination.
Renaissance and Early Modern era.
Further information: Stiletto, Parrying dagger and Dirk.
The dagger was very popular as a fencing and personal defense weapon in 17th- and 18th-century Spain, where it was referred to as the daga or puñal. During the Renaissance Age the dagger was used as part of everyday dress, and daggers were the only weapon commoners were allowed to carry on their person. In English, the terms poniard and dirk are loaned during the late 16th to early 17th century, the latter in the spelling dork, durk (presumably via Low German, Dutch or Scandinavian dolk, dolch, ultimately from a West Slavic tulich), the modern spelling dirk dating to 18th-century Scots".Unquote
Here are some dagger pictures from
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