Tilly Family History
Tilly Name Meaning
English (of Norman origin) and French: habitational name from any of various places in northern France called Tilly (Tiliacum in medieval records). Examples in Eure and Calvados are so called from a Gallo-Roman personal name Tilius (perhaps from Latin tilia ‘lime tree’) + the locative suffix -acum; one in Seine-et-Oise gets its name from the personal name Attilius + -acum. Irish: variant of Tully.
Source: Dictionary of American Family Names ©2013, Oxford University Press