paunce
A piece of armour which covers the abdomen or lower body.
historical
The chest of armour, explicitly stated to have belonged to Oldcastle, contained a pair of 'close bristeplattes', a steel 'paunce', chain mail and another breastplate 'cum lez wyngges', all of which had been confiscated by Sir Thomas ...
Where it comes from
From Middle English paunce, from Old French pance, Middle French pans. Doublet of paunch.
Adapted from the Wiktionary entry paunce (CC BY-SA 4.0).