Tillet, Tillot, whence Tillotson.
"The Romance of Names" by Ernest Weekley
Two of the commonest surnames there to-day are Emmott and Tillot, with such variations as Emmett and Tillett, Emmotson and Tillotson.
"Curiosities of Puritan Nomenclature" by Charles W. Bardsley
He embraced me again and again, and told me that M. du Tillot had overwhelmed him with kindness at Parma.
"The Memoirs of Jacques Casanova de Seingalt, Vol. IV (of VI), "Adventures In The South" The First Complete and Unabridged English Translation, Illustrated with Old Engravings" by Jacques Casanova de Seingalt