Joynson Family History
Joynson Surname Meaning
The name Johnson is a variant of Johnson. This form of the name in which the original /o/ has been lengthened and diphthongized before /n/ reflects a dialectal development found in post-medieval Cheshire and in some other counties.
The name was freely interchangeable with Jenson and Jeynson, which shows a parallel change in the vowel.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
