Cyster Family History
Cyster Surname Meaning
Possibly from Middle English sester ‘brewer's vat’ influenced by the common English word sister. Alternatively, possibly from Middle English suster (earlier swuster) ‘sister’ itself though in what sense is unclear.
The most recent spelling-transformation is unexplained. Some later bearers with the modern spelling certainly belong with (2).
Sometimes arising from or confused with Sweetser or Switzer. Compare John Sweetser 1805 in
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
