Pavise
[pav-is]

1. Large, free-standing shield on hinged support used by archers and crossbowmen as protection when shooting. (Seward, Desmond. Henry V: The Scourge of God, 223)

2. Large rectangular shield carried by spearmen or shield bearers (pavisers) and used to provide cover for crossbowmen. (Wise, Terence. Medieval Warfare, 250)

*term definitions retrieved from Netserf’s Medieval Glossary (http://www.netserf.org/Glossary)