Nigellus

Nigellus is a Latinized form of the Old French name Nigel, itself a medieval Latin rendering of the Old Norse name Njáll or the Old Irish name Niall, meaning champion or cloud. The form was used in medieval scholarly and ecclesiastical contexts, where Latin was the standard written language, making Nigellus the formal equivalent of the vernacular Nigel. Notable medieval bearers include Nigellus Wireker, the twelfth-century English monk and satirist. Related forms include Nigel, Neil, Neal, and Niall.