Syder Family History
Syder Surname Meaning
Perhaps from Middle English sider(e) ‘cider’ for someone who made, sold, or drank cider.
Perhaps from an unrecorded Old French form of the Continental Germanic personal name Sidehar itself from *sidu- ‘custom, modesty’ + *hari- *heri- ‘army’.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
