Silcox Family History
Silcox Surname Meaning
English: variant of Silcock with genitival or post-medieval excrescent -s from the Middle English personal name Silcoc a diminutive of Sil (see Sill).
A pet form either of Silvester or the much rarer Silvein (see Selwyn).
Source: Dictionary of American Family Names 2nd edition, 2022
