Fair play to Google Translate LOL

That would fit, slimy mud. Why isn't it in the dictionary?
I was thinking "aoileach"(manure) but that fits better.

And the "hay and oats" translation show that Hyde wasn't that bothered to translate correctly.

Easógaí had a bad reputation in the old days. I remember even my parents being afraid of them. Superstitious stories.

Lá na mháireach = the next day

Another word I can't find anywhere - go bhacaidh sé í. I'm guessing that it means - until he saw her

Here's the context -

Budh madadh maith é, acht b'éigin dó a ghreim sgaoileadh sul tháinig Páidín suas; acht chonbhuigh sé a shúil uirri go bhacaidh sé í ag dul asteach i mbothán beag a bhí air bhruach locha.

He translates this as follows -

The dog was a good one, but he was forced to loose his hold of her before Paudyeen could come up. He kept his eye on her, however, all through, until he saw her creeping into a little hovel that was on the brink of a lake.

Why is it - Budh - and not - Bhí ?

Probably:
= go bhfaca sé í.



Because it is a copula sentence.
Budh/badh = ba

Go raibh maith agat - of course it just seems so obvious now.

Perhaps it isn't spelt correctly and in fact it should be - go bhfacaidh sé í - which would make more sense.

'Bhfacaidh' is the older spelling of 'bhfaca' (Labhrás gives 'bhfaca' in an edit above).

'Le huisge (huisce)' - Yes, in modern CO Irish 'le' prefixes 'h' to words starting with a vowel.

Go raibh maith agat

I'm wondering whether there isn't a mistake here -

Tháinig Páidín ag rith, agus nuair bhí sé ag an mbotháinín beag thug sé crathadh do'n mhadadh agus chuir sé fearg air, agus chuir sé asteach roimhe é.

Shouldn't there be the conjunction 'a' between - nuair - and - bhí ?

bhí sé definitely is a relative clause here – but those often have the a omitted, both in speech and often in older writing; thus you’ll find things like nuair bhí sé, conas tánn tú, etc. Texts on the corkirish blog for example mark this silent a using the apostrophe, so you’ll find examples of nuair ’ bhí sé there.

If it’s not a text written in modern standardized orthography, I wouldn’t call it a mistake.

Ceart go leor, go raibh maith agat.