(pen) "Ch" is guttural and separate from the "s". First "e" short; the others are schwas. Next up - Dwygyfylchi. Dim gŵglio.

"Diggy-figgy"?

[Rosie] No. S-[swallow-the-back-of-your-tongue-noise]-ay-ferni-[swallow-the-G]-en. *wink*

(pen) Well, I was nearly right. Nearly, sort of.
(Raak) Close. In Wikipaedia it gives the correct IPA representation then f***s it up completely with an English version and gives the wrong meaning. I don't know what the meaning is except that it's two something-or-others. Dwy ("Doo-ee", but very "back") is the feminine form of dau = "two".

What about Wrotham and Meopham?

Or indeed Gotham and Haugham?