Killingsworth Family History

English (Norfolk): variant of Killingworth a habitational name from North and South Kilworth (Leicestershire) or from Killingworth (Northumberland). The Leicestershire placename probably derives from an Old English personal name Cyfel + the Old English placename forming suffix -ing or the groupname suffix -ingas (genitive -inga-) + Old English worth ‘enclosure’.

The Northumberland placename probably derives from an Old English personal name Cylla + Old English connective -ing- + worth. This name may sometimes have been confused with Collingwood.