>>>> 'Notbér lem dom tig & not-ícfaiter acum & madat slán immorro
>>>> caithfet frit.'
>> We just need to deal with the idiom "caithid fri", which I'm not
>> familiar with.
> "caithid fri" could rather be "to apply to", i.e. "I will look
> after you" (cf. DIL C 55.78).
> This explanation of 'caithid fri' gets pretty close to the Modern
> usage as in "conas a chaitheann sé leat?" = how is he treating you?
So perhaps "... and then if you're well I'll deal with you." ??