Sassenach - Scottish, Gaellic - English people. Seems suspiciously close to the modern Welsh word to describe someone of English nationality "Saesneg". The Welsh form is apparently Seisnig.
"Mae Cymru'n brefi o ddan yr annwyd o'r cythreuliaid sassenach"
Fuck aspirant mutations - these aren't the exceptions I was taught in secondary school
"Mae Cymru'n brefi o ddan yr annwyd o'r cythreuliaid sassenach"
Fuck aspirant mutations - these aren't the exceptions I was taught in secondary school