In 1905, Morris B. Gregg published some research regarding the name Giric, saying: The Greg, or Grig, family originated in Scotland and the name is the root from which have sprung the Greggs, Griggs, Graggs, Gregsons, Grigsons, Gregors, Grigors, Gregersons, MacGregors, MacGrigors, Griers, Griersons, and the Scotch family of Gregory.
Giric's name is also associated with that of St Cyricus, who, as a small child, was martyred along with his mother during the Diocletianic persecution in the early fourth century.