From early modern fa ris sin (“morover”), from fa + ris (< Old Irish fris) + sin.[1] Compare frae, fara (“along with”).
freisin
- also, as well, too
- ^ T. F. O’Rahilly (1941) “Introduction”, in Flaithrí Ó Maolchonaire, Desiderius, otherwise called Sgáthán an chrábhaidh[1], Dublin, page xxxvi