a Philippa, a thaisce,
Is ró-fhada ó bhí muid ag caint le chéile !
The forms "neos" etc. are as a result of metathisis, a well known and universal feature of language where sounds "swap places" with each other. You'll be familiar with the forms "ní abóraidh mé" instead of the "regular" "ní abróidh mé" and "ciofalán" instead of "comhthionól".
You might well find these mentioned in Dinneen's dictionary where Ó Dónaill left them out.
Annraoi