Nigel m
English: Anglicized form of the medieval name Nigellus, a Latinized version (ostensibly representing a diminutive of Latin niger black) of the vernacular Ni(h)el, i.e. NEIL (SEE Neil). Although it is frequently found in medieval records, this form was probably not used in everyday life before its revival by antiquarians such as Sir Walter Scott in the 19th century.
Feminine: Nigella.
First names dictionary. 2012.