Dark or black
Nigil is a rare variant of the name Nigel, which is derived from the Latin name Nigellus. While historically associated with the Latin word for black, it was also used as a Latinized form of the Gaelic name Niall, meaning champion or cloud.
Fewer than 5 boys were named Nigil in 2025.
US births per 5-year period, 1990–present (SSA data).