Ross writes fake news for bbc:

Ibbetson an unusual and interesting surname, of early medieval English origin, is the diminutive form ("son of" or little) of Hibbs, itself a patronymic, from a diminutive of Hibbert, which derives from a Norman personal name, "Hil(de)bert", composed of the Germanic elements "hild", battle, and "berht" famous. However, Hibbs is also a metronymic (from the mother) form of a popular medieval female given name "Ibb", a pet form of Isabell(e), which originally came from the Hebrew "Elisheva", meaning "my God is my oath"

Read more: http://www.surnamedb.com/Surname/Ibbetson#ixzz5fKWnZAdX