I read the first line of stanza 7 as:
B(h)rait[h]er briat[h]ur c(h)ert
I purported to delete the lenition of the initial capital 'B'. There is
indeed a mark of lenition over the 'B'. However, there is also a punctum
delens under the 'B'. I suspect this is intended to cancel out the
lenition mark written in error above it. So there was not need for me to
delete the lenition; it isn't actually there.