Toirdelbach is a masculine Irish given name. Forms of the name include Toirdhealbhach, Tárlach, and Traolach. An Anglicised form is Turlough. The names are ultimately derived from the Irish toirdhealbh meaning "prompting", and originated as a byname meaning "instigator".eDIL, tairdelb, vn. of *do-airdelba. promoting, furthering
