(This message does not seem to have made it to the List for some reason,
so I am repeating it. Sorry if two copies turn up.)
>> (d) nar laoi cêim ar ccûl
>> 'he has not taken a backwards step'
>Am I following you correctly in that you are taking "laoi" to be a
> form from "laigid"?
I take it to be (3 sg. conjunct) perfect of 'luïd'.