corperal (s.xiii1)[DD]
The origins of this term are unclear. The Latin equivalent corpalatium is a variation of cura palatii or Greek κoυροπαλάτης. Though Gdf translates it as 'bodyguard', a less specialised definition is favoured due to etymological uncertainties. The term may be an early attestation of caporal 'military leader', possibly taken from Medieval Latin caporalis, albeit not attested before the fourteenth century. For further analysis see Siege Antioche Gabel p.380