Agincourt
Noun
Meaning
a battle in northern France in which English longbowmen under Henry V decisively defeated a much larger French army in 1415
Source: WordNetExamples
Although a Franco-Scottish army was successful at the Battle of Baugé (1421), the humiliating defeats of Poitiers (1356) and Agincourt (1415) forced the French nobility to realise they could not stand just as armoured knights without an organised army.
Agincourt House (next to the Lower Ferry) is also 14th century.
It has no etymological connection in French with Agincourt, Meurthe-et-Moselle (attested as Egincourt 875), which is derived from another Germanic male name *Ingin-.
Barker states that some knights, encumbered by their armour, actually drowned in their helmets.sfn Fighting Opening moves "Morning of the Battle of Agincourt, 25th October 1415", painted by Sir John Gilbert in the 19th century.
However this did not necessarily make the longbow ineffective; thousands of longbowmen were deployed in the English victory at Agincourt against plate armoured French knights in 1415.
Nevertheless, at the battle of Agincourt in 1415 and for some decades thereafter, English longbowmen continued to be an effective battlefield force.