There are a number of threads on ar Éirinn ní neosfainn cé hí. I do not know how to link to them.

Aréir is mé ag téarnamh ar neoin
Ar an dtaobh eile den teora dá mbím,
Sea do thaobhnaigh an spéirbhean im chomhair
’Dh’fhág taomanach breoite lag tinn,
Le haonghean dá méin is dá cló,
Dá briathra is dá beol tanaí binn,
Do léimeas faoi dhéin dul ’na comhair
’S ar Éirinn ní neosfainn cé hí.

Dá ngéillfeadh an spéirbhean dom ghlór
Is iad ráite mo bheoil a bheadh fíor,
Go deimhin duit, ná déanfainn do ghnó,
Do léirchur i gcóir ’s i gcrích,
Do léifinn léirstair dom stór,
Is ba mhéin liom í a phógadh ó mo chroí,
Do bhéarfainn an chraobh di ina dóid,
’S ar Éirinn ní neosfainn cé hí.

A ghrá ghil, bí páirteach liom féin,
’S go háirithe, dá mb’fhéidir liom scríobh,
Bheinn ag gáire le bánchnis na gcraobh
Dá bhfaighinn áirithe ó aoinne cé hí,
Níl a cairde róshásta liom féin
Chun áras a dhéanamh ná tíos,
Ach ó tá sí, de réir ráite do bhéil,
Ní náir duit a léamh dúinn cé hí.
Last night and I wandering as you do,
On the other side of my lands I was,
There a beautiful woman approached him
Who left me sick and moody afterwards.
With her lovely bearing and shape,
Her sweet words and thin lips,
I hastened to be in her presence
But for all of Ireland I'd not tell her name.

If this maiden submits to my voice,
are said my Bel would be true,
In fact you, or déanfainn your business,
Your léirchur for and out,
Your would read léirstair me dear,
are most regards I was kissing from my heart,
Your I would give her a Maeldoid the championship,
and Ireland I'd not tell her name.

Oh my true love, be sympathetic to me,
and especially, if I may write,
I would be laughing like the white of the branches,
If I get certainty as to who she is,
Her friends are not happy with me
For us to make a home together,
But if she is, according to what you say,
Don't fear to tell me her name.


https://www.youtube.com/watch?v=dcNc_zUanSU