Llan is church - Dewi is after Dewi Sant/Saint David and brefi is:

According to old tradition died one of the humped oxen of the team of Hu Gadarn. Distracted at having lost its comrade, which perished from the dreadful efforts which it made along with the others in drawing the afanc hen or old crocodile from the lake of lakes, it fled away from its master, and wandered about, till coming to the glen now called that of Llan Ddewi Brefi, it fell down and perished after excessive bellowing, from which noise the place probably derived its name of Brefi, for Bref in Cumbric signifies a mighty bellowing or lowing. Horns of enormous size, said to have belonged to this humped ox or bison, were for many ages preserved in the church.

brefi a ol welsh word for animal noices same as bleating in english I suppose. Spelt Brefu these days though!

> We New South welshmen and women are currently enjoying an outrageous comedy on the box called "Little Britain" one of the skits features a fictitious Welsh village called Llandewi Treffi, I can struggle along with Llandewi, however Treffi, if it is indeed a Welsh word, has me stumped. Any help would be appreciated.
> Have you seen the show Dave?
> Mat Lucas and David Williams are the main characters, they really sail close to the wind in many of the sketches, but hey, you've got to laugh!