Dilcock Family History
Dilcock Surname Meaning
Perhaps a pet form with the diminutive suffix -cok of a Middle English personal name *Dille, *Dulle, Old English *Dulla, *Dylli, or *Dylla, which is attested in English place-names and probably derives from Old English dol, *dylle ‘dull’.
See Dill and compare Dilnot, Dilling. Alternatively, it may be a nickname for a dullard from Middle English dul, dil (Old English dol, *dylle) + the belittling suffix -cok.
Compare Dilling.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
