haakbus

Dutch haak meant a hook; bus meant a tube or box (and by extension a firearm — busken meant to thunder or boom). The haakbus was a firearm with a hook-shaped projection under the barrel used to brace against a wall, rampart, or stake to absorb recoil. The Spanish rendered it as arcabuz; French as arquebuse; English as harquebus or arquebus. The weapon typically weighed 4–6 kg and fired a lead ball of about 15–20mm caliber.

The harquebus emerged as a military weapon around 1420–1440. At the Battle of Cerignola (1503) — the first major battle in history won by firearms — the Spanish under Gonzalo de Córdoba used ditches and harquebusiers to defeat a French cavalry charge. The combination of defensive earthworks and firepower would define the Military Revolution that Gonzalo was beginning.

By the 1530s, the harquebus had spawned heavier variants. The musket (from Italian moschetto — possibly from musca, a type of hawk) was a larger, heavier version requiring a forked rest; the petronel (from French poitrinal — of the chest) was a lighter version fired with the stock against the chest. The taxonomy of early firearms was chaotic because the technology was developing too rapidly for terminology to keep up.

The word disappeared as weapons improved. The English Civil War (1642–1651) was still partly fought with matchlock muskets; by the Nine Years' War (1688–1697) flintlocks had standardized. The harquebus — Dutch hook-gun — left no direct descendant in vocabulary, though it shaped the tactics and terminology of everything that followed.