Rumsby Family History
Rumsby Surname Meaning
Probably an alternative pronunciation of Ramsby, a variant of Ransby (see Ranby). The change in vowel results from a confusion in early Modern English of /a/ and /æ/ with /ʌ/ from a lowering and unrounding of Middle English /u/.
Thorington (see the 1632 example of Rumsby) is next to Bramfield (Suffolk) where William
The change of -nsb- to -msb- is attested in Willm.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
