Merseyside

English Wikipedia has an article on:

Merseyside

Wikipedia

From Mersey +‎ -side.

(Received Pronunciation) IPA^(key): /ˈmɜː.ziˌsaɪd/
- Audio (Southern England): (file)
(Liverpool) IPA^(key): [ˈmeː.ziˌsaɪð̠]
Audio (US): (file)

Merseyside

[from 1974] A metropolitan county in northwestern England bordering Greater Manchester, Lancashire and Cheshire.
- 2011 October 15, Phil McNulty, “Liverpool 1 - 1 Man Utd”, in BBC Sport‎:
  United were second-best for long periods as they struggled to adapt to an unfamiliar line-up and were ultimately fortunate to leave Merseyside with their unbeaten league run still intact.